diff --git a/fnliterals.scad b/fnliterals.scad
index f55267f..bd18adc 100644
--- a/fnliterals.scad
+++ b/fnliterals.scad
@@ -15,7 +15,9 @@
 
 
 // Function: map()
+// Synopsis: Applies a function to each item in a list.
 // Topics: Function Literals, Looping
+// See Also: filter(), reduce(), accumulate(), while(), for_n()
 // Usage:
 //   lst = map(func, list);
 //   lst = map(function (x) x+1, list);
@@ -32,7 +34,6 @@
 // Arguments:
 //   func = The function of signature (x) to evaluate for each item in `list`.
 //   list = The input list.
-// See Also: filter(), reduce(), accumulate(), while(), for_n()
 // Example:
 //   func = function(x) x*x;
 //   echo(map(func, [1,2,3,4]));
@@ -47,7 +48,9 @@ function map(func, list) =
 
 
 // Function: filter()
+// Synopsis: Returns just the list items which the given function returns true for.
 // Topics: Function Literals, Looping, Filters
+// See Also: map(), reduce(), accumulate(), while(), for_n(), find_all()
 // Usage:
 //   lst = filter(func, list);
 //   lst = filter(function (x) x>1, list);
@@ -65,7 +68,6 @@ function map(func, list) =
 // Arguments:
 //   func = The function of signature `function (x)` to evaluate for each item in `list`.
 //   list = The input list.
-// See Also: map(), reduce(), accumulate(), while(), for_n()
 // Example:
 //   func = function(x) x>5;
 //   echo(filter(func, [3,4,5,6,7]));
@@ -77,7 +79,9 @@ function filter(func, list) =
 
 
 // Function: reduce()
+// Synopsis: Applies a 2-arg function cumulatively to the items of a list, returning the final result.
 // Topics: Function Literals, Looping
+// See Also: map(), filter(), accumulate(), while(), for_n()
 // Usage:
 //   res = reduce(func, list, [init]);
 //   res = reduce(function (a,b) a+b, list, <init=);
@@ -98,7 +102,6 @@ function filter(func, list) =
 //   func = The function of signature `function (x)` to evaluate for each item in `list`.
 //   list = The input list.
 //   init = The starting value for the accumulator.  Default: 0
-// See Also: map(), filter(), accumulate(), while(), for_n()
 // Example: Re-Implement sum()
 //   x = reduce(f_add(),[3,4,5]);  // Returns: 12
 // Example: Re-Implement product()
@@ -119,7 +122,9 @@ function reduce(func, list, init=0) =
 
 
 // Function: accumulate()
+// Synopsis: Applies a 2-arg function cumulatively to the items of a list, returning a list of every result.
 // Topics: Function Literals, Looping
+// See Also: map(), filter(), reduce(), while(), for_n()
 // Usage:
 //   res = accumulate(func, list, [init]);
 //   res = accumulate(function (a,b) a+b, list, [init=]);
@@ -142,7 +147,6 @@ function reduce(func, list, init=0) =
 //   func = The function of signature `function (a,b)` to evaluate for each item in `list`.  Default: `f_add()`
 //   list = The input list.
 //   init = The starting value for the accumulator.  Default: 0
-// See Also: map(), filter(), reduce(), while(), for_n()
 // Example: Reimplement cumsum()
 //   echo(accumulate(function (a,b) a+b, [3,4,5],0));  // ECHO: [3,7,12]
 // Example: Reimplement cumprod()
@@ -160,7 +164,9 @@ function accumulate(func, list, init=0) =
 
 
 // Function: while()
+// Synopsis: While a `cond` function returns true, iteratively calls a work function, returning the final result.
 // Topics: Function Literals, Looping, Iteration
+// See Also: map(), filter(), reduce(), accumulate(), while(), for_n()
 // Usage:
 //   x = while(init, cond, func);
 // Description:
@@ -182,7 +188,6 @@ function accumulate(func, list, init=0) =
 //   init = The initial value for `x`.
 //   cond = A function literal with signature `function (i,x)`, called to determine if the loop should continue.  Returns true if the loop should continue.
 //   func = A function literal with signature `function (i,x)`, called on each iteration.  The returned value is passed as `x` on the next iteration.
-// See Also: map(), filter(), reduce(), accumulate(), while(), for_n()
 // Example:
 //   fibs = while(
 //       init = [1,1],
@@ -197,6 +202,7 @@ function while(init, cond, func) =
 
 
 // Function: for_n()
+// Synopsis: Iteratively calls a work function `n` times, returning the final result.
 // Topics: Function Literals, Looping, Iteration
 // See Also: map(), filter(), reduce(), accumulate(), while()
 // Usage:
@@ -238,7 +244,9 @@ function for_n(n,init,func) =
 
 
 // Function: find_all()
+// Synopsis: Returns the indices of all items in a list that a given function returns true for.
 // Topics: Function Literals, Looping, Filters
+// See Also: find_all(), reduce(), find_first(), binsearch()
 // Usage:
 //   indices = find_all(func, list);
 //   indices = find_all(function (x) x>1, list);
@@ -256,7 +264,6 @@ function for_n(n,init,func) =
 // Arguments:
 //   func = The function of signature `function (x)` to evaluate for each item in `list`.
 //   list = The input list.
-// See Also: find_all(), map(), reduce(), accumulate(), while(), for_n()
 // Example:
 //   func = function(x) x>5;
 //   echo(find_all(func, [3,4,5,6,7]));
@@ -268,15 +275,16 @@ function find_all(func, list) =
 
 
 // Function: find_first()
+// Synopsis: Returns the index of the first item in a list, after `start`, that a given function returns true for.
 // Topics: Function Literals, Searching
+// See Also: find_all(), filter(), binsearch(), find_all()
 // Usage:
 //   idx = find_first(func, list, [start=]);
 // Description:
-//   Finds the first item in `list`, after index `start`,  which the function literal in `func` will return true for.
+//   Finds the index of the first item in `list`, after index `start`,  which the function literal in `func` will return true for.
 //   The signature of the function literal in `func` is `function (x)`, and it is expected to return true when the
 //   value compares as matching.  It should return false otherwise.  If you need to find *all* matching items in the
 //   list, you should use {{find_all()}} instead.
-// See Also: find_all(), map(), filter(), reduce(), accumulate(), while(), for_n(), binsearch()
 // Arguments:
 //   func = The function literal to use to check each item in `list`.  Expects the signature `function (x)`, and a boolean return value.
 //   list = The list to search.
@@ -306,7 +314,9 @@ function find_first(func, list, start=0) =
 
 
 // Function: binsearch()
+// Synopsis: Does a binary search of a sorted list to find the index of a given value.
 // Topics: Function Literals, Data Structures, Searching
+// See Also: map(), filter(), reduce(), accumulate(), hashmap(), find_all(), find_first()
 // Usage:
 //   idx = binsearch(key,list, [cmp]);
 // Description:
@@ -317,7 +327,6 @@ function find_first(func, list, start=0) =
 //   list = The list of items to search through.
 //   idx = If given, the index of the item sublists to use as the item key.
 //   cmp = The comparator function literal to use.  Default: `f_cmp()`
-// See Also: map(), filter(), reduce(), accumulate(), hashmap()
 // Example:
 //   items = unique(rands(0,100,10000));
 //   idx = binsearch(44, items);
@@ -342,14 +351,15 @@ function binsearch(key, list, idx, cmp=f_cmp()) =
 
 
 // Function: simple_hash()
+// Synopsis: Returns an integer hash of a given value.
 // Topics: Function Literals, Hashing, Data Structures
+// See Also: hashmap()
 // Usage:
 //   hx = simple_hash(x);
 // Description:
 //   Given an arbitrary value, returns the integer hash value for it.
 // Arguments:
 //   x = The value to get the simple hash value  of.
-// See Also: hashmap()
 // Example:
 //   x = simple_hash("Foobar");
 //   x = simple_hash([[10,20],[-5,3]]);
@@ -367,7 +377,9 @@ function simple_hash(x) =
 
 
 // Function: hashmap()
+// Synopsis: Creates a hashmap manipulation function.
 // Topics: Function Literals, Data Structures, Hashing
+// See Also: simple_hash()
 // Usage: Creating an Empty HashMap.
 //   hm = hashmap([hashsize=]);
 // Usage: Creating a Populated HashMap.
@@ -445,7 +457,8 @@ function hashmap(hashsize=127,items,table) =
 
 
 // Function: f_1arg()
-// Topics: Function Literals, Function Literal Factories
+// Synopsis: Creates a factory for a 2-arg function literal, where you can optionally pre-fill the arg.
+// Topics: Function Literals
 // See Also: f_2arg(), f_3arg()
 // Usage:
 //   fn = f_1arg(func);
@@ -463,7 +476,8 @@ function f_1arg(target_func) =
 
 
 // Function: f_2arg()
-// Topics: Function Literals, Function Literal Factories
+// Synopsis: Creates a factory for a 2-arg function literal, where you can optionally pre-fill the args.
+// Topics: Function Literals
 // See Also: f_1arg(), f_3arg()
 // Usage:
 //   fn = f_2arg(target_func);
@@ -487,7 +501,8 @@ function f_2arg(target_func) =
 
 
 // Function: f_2arg_simple()
-// Topics: Function Literals, Function Literal Factories
+// Synopsis: Creates a factory for a 2-arg function literal, where you can optionally pre-fill the args.
+// Topics: Function Literals
 // See Also: f_1arg(), f_3arg()
 // Usage:
 //   fn = f_2arg_simple(target_func);
@@ -509,7 +524,8 @@ function f_2arg_simple(target_func) =
 
 
 // Function: f_3arg()
-// Topics: Function Literals, Function Literal Factories
+// Synopsis: Creates a factory for a 3-arg function literal, where you can optionally pre-fill the args.
+// Topics: Function Literals
 // See Also: f_1arg(), f_2arg()
 // Usage:
 //   fn = f_3arg(target_func);
@@ -537,6 +553,9 @@ function f_3arg(target_func) =
 
 
 // Function: ival()
+// Synopsis: Generates a function with signature `(i,x)` that calls `func(i)`
+// Topics: Function Literals
+// See Also: f_1arg(), f_2arg(), f_3arg(), ival(), xval()
 // Usage:
 //   newfunc = ival(func);
 // Description:
@@ -553,6 +572,9 @@ function ival(target_func) = function(a,b) target_func(a);
 
 
 // Function: xval()
+// Synopsis: Generates a function with signature `(i,x)` that calls `func(x)`
+// Topics: Function Literals
+// See Also: f_1arg(), f_2arg(), f_3arg(), ival(), xval()
 // Usage:
 //   newfunc = xval(func);
 // Description:
@@ -574,6 +596,9 @@ function xval(target_func) = function(a,b) target_func(b);
 
 
 // Function: f_cmp()
+// Synopsis: Returns a function to compare values.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_cmp();
 //   fn = f_cmp(b);
@@ -590,6 +615,9 @@ function f_cmp(a,b) = f_2arg_simple(function (a,b) a==b?0: a>b?1: -1)(a,b);
 
 
 // Function: f_gt()
+// Synopsis: Returns a function to compare if `a` is greater than `b`.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_gt();
 //   fn = f_gt(b);
@@ -605,6 +633,9 @@ function f_gt(a,b) = f_2arg_simple(function (a,b) a>b)(a,b);
 
 
 // Function: f_lt()
+// Synopsis: Returns a function to compare if `a` is less than `b`.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_lt();
 //   fn = f_lt(b);
@@ -620,6 +651,9 @@ function f_lt(a,b) = f_2arg_simple(function (a,b) a<b)(a,b);
 
 
 // Function: f_gte()
+// Synopsis: Returns a function to compare if `a` is greater than or equal to `b`.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_gte();
 //   fn = f_gte(b);
@@ -635,6 +669,9 @@ function f_gte(a,b) = f_2arg_simple(function (a,b) a>=b)(a,b);
 
 
 // Function: f_lte()
+// Synopsis: Returns a function to compare if `a` is less than or equal to `b`.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_lte();
 //   fn = f_lte(b);
@@ -650,6 +687,9 @@ function f_lte(a,b) = f_2arg_simple(function (a,b) a<=b)(a,b);
 
 
 // Function: f_eq()
+// Synopsis: Returns a function to compare if `a` is exactly equal to `b`.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_eq();
 //   fn = f_eq(b);
@@ -665,6 +705,9 @@ function f_eq(a,b) = f_2arg_simple(function (a,b) a==b)(a,b);
 
 
 // Function: f_neq()
+// Synopsis: Returns a function to compare if `a` is not exactly equal to `b`.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_neq();
 //   fn = f_neq(b);
@@ -680,6 +723,9 @@ function f_neq(a,b) = f_2arg_simple(function (a,b) a!=b)(a,b);
 
 
 // Function: f_approx()
+// Synopsis: Returns a function to compare if `a` is approximately equal to `b`.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_approx();
 //   fn = f_approx(b);
@@ -695,6 +741,9 @@ function f_approx(a,b) = f_2arg_simple(function (a,b) approx(a,b))(a,b);
 
 
 // Function: f_napprox()
+// Synopsis: Returns a function to compare if `a` is not approximately equal to `b`.
+// Topics: Function Literals, Comparators
+// See Also: f_cmp(), f_gt(), f_lt(), f_gte(), f_lte(), f_eq(), f_neq(), f_approx(), f_napprox()
 // Usage:
 //   fn = f_napprox();
 //   fn = f_napprox(b);
@@ -715,7 +764,9 @@ function f_napprox(a,b) = f_2arg_simple(function (a,b) !approx(a,b))(a,b);
 
 
 // Function: f_or()
+// Synopsis: Returns a function to check if either `a` or `b` is true.
 // Topics: Function Literals, Logic, Boolean Operations
+// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 // Usage:
 //   fn = f_or();
 //   fn = f_or(a=);
@@ -727,12 +778,13 @@ function f_napprox(a,b) = f_2arg_simple(function (a,b) !approx(a,b))(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 function f_or(a,b) = f_2arg(function(a,b) (a || b))(a,b);
 
 
 // Function: f_and()
+// Synopsis: Returns a function to check if both `a` and `b` are true.
 // Topics: Function Literals, Logic, Boolean Operations
+// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 // Usage:
 //   fn = f_and();
 //   fn = f_and(a=);
@@ -744,12 +796,13 @@ function f_or(a,b) = f_2arg(function(a,b) (a || b))(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 function f_and(a,b) = f_2arg(function(a,b) (a && b))(a,b);
 
 
 // Function: f_nor()
+// Synopsis: Returns a function to check if neither `a` nor `b` are true.
 // Topics: Function Literals, Logic, Boolean Operations
+// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 // Usage:
 //   fn = f_nor();
 //   fn = f_nor(a=);
@@ -761,12 +814,13 @@ function f_and(a,b) = f_2arg(function(a,b) (a && b))(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 function f_nor(a,b) = f_2arg(function(a,b) !(a || b))(a,b);
 
 
 // Function: f_nand()
+// Synopsis: Returns a function to check if `a` and `b` are not both true.
 // Topics: Function Literals, Logic, Boolean Operations
+// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 // Usage:
 //   fn = f_nand();
 //   fn = f_nand(a=);
@@ -778,12 +832,13 @@ function f_nor(a,b) = f_2arg(function(a,b) !(a || b))(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 function f_nand(a,b) = f_2arg(function(a,b) !(a && b))(a,b);
 
 
 // Function: f_xor()
+// Synopsis: Returns a function to check if either `a` or `b`, but not both, are true.
 // Topics: Function Literals, Logic, Boolean Operations
+// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 // Usage:
 //   fn = f_xor();
 //   fn = f_xor(a=);
@@ -795,12 +850,13 @@ function f_nand(a,b) = f_2arg(function(a,b) !(a && b))(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 function f_xor(a,b) = f_2arg(function(a,b) (!a && b) || (a && !b))(a,b);
 
 
 // Function: f_not()
+// Synopsis: Returns a function to check if `a` is not true.
 // Topics: Function Literals, Logic, Boolean Operations
+// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 // Usage:
 //   fn = f_not();
 //   fn = f_not(a);
@@ -809,12 +865,13 @@ function f_xor(a,b) = f_2arg(function(a,b) (!a && b) || (a && !b))(a,b);
 //   argument can be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not()
 function f_not(a) = f_1arg(function(a) !a)(a);
 
 
 // Function: f_even()
+// Synopsis: Returns a function to check if `a` is an even number.
 // Topics: Function Literals, Math Operators
+// See Also: f_even(), f_odd()
 // Usage:
 //   fn = f_even();
 //   fn = f_even(a);
@@ -823,14 +880,15 @@ function f_not(a) = f_1arg(function(a) !a)(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not(), f_even(), f_odd()
 // Example:
 //   l2 = filter(f_even(), [3,4,5,6,7,8]);  // Returns: [4,6,8]
 function f_even(a) = f_1arg(function(a) a % 2 == 0)(a);
 
 
 // Function: f_odd()
+// Synopsis: Returns a function to check if `a` is an odd number.
 // Topics: Function Literals, Math Operators
+// See Also: f_even(), f_odd()
 // Usage:
 //   fn = f_odd();
 //   fn = f_odd(a);
@@ -839,7 +897,6 @@ function f_even(a) = f_1arg(function(a) a % 2 == 0)(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_or(), f_and(), f_nor(), f_nand(), f_xor(), f_not(), f_even(), f_odd()
 // Example:
 //   l2 = filter(f_odd(), [3,4,5,6,7,8]);  // Returns: [3,5,7]
 function f_odd(a) = f_1arg(function(a) a % 2 != 0)(a);
@@ -851,7 +908,9 @@ function f_odd(a) = f_1arg(function(a) a % 2 != 0)(a);
 
 
 // Function: f_add()
+// Synopsis: Returns a function to add `a` and `b`.
 // Topics: Function Literals, Math Operators
+// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 // Usage:
 //   fn = f_add();
 //   fn = f_add(a=);
@@ -863,12 +922,13 @@ function f_odd(a) = f_1arg(function(a) a % 2 != 0)(a);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 function f_add(a,b) = f_2arg(function(a,b) a + b)(a,b);
 
 
 // Function: f_sub()
+// Synopsis: Returns a function to subtract `a` from `b`.
 // Topics: Function Literals, Math Operators
+// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 // Usage:
 //   fn = f_sub();
 //   fn = f_sub(a=);
@@ -880,12 +940,13 @@ function f_add(a,b) = f_2arg(function(a,b) a + b)(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 function f_sub(a,b) = f_2arg(function(a,b) a - b)(a,b);
 
 
 // Function: f_mul()
+// Synopsis: Returns a function to multiply `a` by `b`.
 // Topics: Function Literals, Math Operators
+// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 // Usage:
 //   fn = f_mul();
 //   fn = f_mul(a=);
@@ -897,12 +958,13 @@ function f_sub(a,b) = f_2arg(function(a,b) a - b)(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 function f_mul(a,b) = f_2arg(function(a,b) a * b)(a,b);
 
 
 // Function: f_div()
+// Synopsis: Returns a function to divide `a` by `b`.
 // Topics: Function Literals, Math Operators
+// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 // Usage:
 //   fn = f_div();
 //   fn = f_div(a=);
@@ -914,12 +976,13 @@ function f_mul(a,b) = f_2arg(function(a,b) a * b)(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 function f_div(a,b) = f_2arg(function(a,b) a / b)(a,b);
 
 
 // Function: f_mod()
+// Synopsis: Returns a function to calculate the modulo of `a` divided by `b`.
 // Topics: Function Literals, Math Operators
+// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 // Usage:
 //   fn = f_mod();
 //   fn = f_mod(a=);
@@ -931,12 +994,13 @@ function f_div(a,b) = f_2arg(function(a,b) a / b)(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 function f_mod(a,b) = f_2arg(function(a,b) a % b)(a,b);
 
 
 // Function: f_pow()
+// Synopsis: Returns a function to calculate `a` to the power of `b`.
 // Topics: Function Literals, Math Operators
+// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 // Usage:
 //   fn = f_pow();
 //   fn = f_pow(a=);
@@ -948,12 +1012,13 @@ function f_mod(a,b) = f_2arg(function(a,b) a % b)(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 function f_pow(a,b) = f_2arg(function(a,b) pow(a,b))(a,b);
 
 
 // Function: f_neg()
+// Synopsis: Returns a function to calculate `-a`
 // Topics: Function Literals, Math Operators
+// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 // Usage:
 //   fn = f_neg();
 //   fn = f_neg(a);
@@ -962,7 +1027,6 @@ function f_pow(a,b) = f_2arg(function(a,b) pow(a,b))(a,b);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_add(), f_sub(), f_mul(), f_div(), f_mod(), f_pow(), f_neg()
 function f_neg(a) = f_1arg(function(a) -a)(a);
 
 
@@ -972,7 +1036,9 @@ function f_neg(a) = f_1arg(function(a) -a)(a);
 
 
 // Function: f_min()
+// Synopsis: Returns a function to calculate the minimum value of a list.
 // Topics: Function Literals, Math Operators
+// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 // Usage:
 //   fn = f_min();
 //   fn = f_min(a);
@@ -981,12 +1047,13 @@ function f_neg(a) = f_1arg(function(a) -a)(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 function f_min(a) = f_1arg(function(a) min(a))(a);
 
 
 // Function: f_max()
+// Synopsis: Returns a function to calculate the maximum value of a list.
 // Topics: Function Literals, Math Operators
+// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 // Usage:
 //   fn = f_max();
 //   fn = f_max(a);
@@ -995,12 +1062,13 @@ function f_min(a) = f_1arg(function(a) min(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 function f_max(a) = f_1arg(function(a) max(a))(a);
 
 
 // Function: f_min2()
+// Synopsis: Returns a function to calculate the minimum of two values.
 // Topics: Function Literals, Math Operators
+// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 // Usage:
 //   fn = f_min2();
 //   fn = f_min2(a=);
@@ -1012,12 +1080,13 @@ function f_max(a) = f_1arg(function(a) max(a))(a);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 function f_min2(a,b) = f_2arg(function(a,b) min(a,b))(a,b);
 
 
 // Function: f_max2()
+// Synopsis: Returns a function to calculate the maximum of two values.
 // Topics: Function Literals, Math Operators
+// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 // Usage:
 //   fn = f_max2();
 //   fn = f_max2(a=);
@@ -1029,12 +1098,13 @@ function f_min2(a,b) = f_2arg(function(a,b) min(a,b))(a,b);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 function f_max2(a,b) = f_2arg(function(a,b) max(a,b))(a,b);
 
 
 // Function: f_min3()
+// Synopsis: Returns a function to calculate the minimum of three values.
 // Topics: Function Literals, Math Operators
+// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 // Usage:
 //   fn = f_min3();
 //   fn = f_min3(a=);
@@ -1051,12 +1121,13 @@ function f_max2(a,b) = f_2arg(function(a,b) max(a,b))(a,b);
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
 //   c = If given, replaces the third argument.
-// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 function f_min3(a,b,c) = f_3arg(function(a,b,c) min(a,b,c))(a,b,c);
 
 
 // Function: f_max3()
+// Synopsis: Returns a function to calculate the maximum of three values.
 // Topics: Function Literals, Math Operators
+// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 // Usage:
 //   fn = f_max3();
 //   fn = f_max3(a=);
@@ -1073,7 +1144,6 @@ function f_min3(a,b,c) = f_3arg(function(a,b,c) min(a,b,c))(a,b,c);
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
 //   c = If given, replaces the third argument.
-// See Also: f_min(), f_max(), f_min2(), f_max2(), f_min3(), f_max3()
 function f_max3(a,b,c) = f_3arg(function(a,b,c) max(a,b,c))(a,b,c);
 
 
@@ -1083,7 +1153,9 @@ function f_max3(a,b,c) = f_3arg(function(a,b,c) max(a,b,c))(a,b,c);
 
 
 // Function: f_sin()
+// Synopsis: Returns a function to calculate the sine of a value.
 // Topics: Function Literals, Math Operators
+// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 // Usage:
 //   fn = f_sin();
 //   fn = f_sin(a);
@@ -1092,12 +1164,13 @@ function f_max3(a,b,c) = f_3arg(function(a,b,c) max(a,b,c))(a,b,c);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 function f_sin(a)  = f_1arg(function(a) sin(a))(a);
 
 
 // Function: f_cos()
+// Synopsis: Returns a function to calculate the cosine of a value.
 // Topics: Function Literals, Math Operators
+// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 // Usage:
 //   fn = f_cos();
 //   fn = f_cos(a);
@@ -1106,12 +1179,13 @@ function f_sin(a)  = f_1arg(function(a) sin(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 function f_cos(a)  = f_1arg(function(a) cos(a))(a);
 
 
 // Function: f_tan()
+// Synopsis: Returns a function to calculate the tangent of a value.
 // Topics: Function Literals, Math Operators
+// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 // Usage:
 //   fn = f_tan();
 //   fn = f_tan(a);
@@ -1120,12 +1194,13 @@ function f_cos(a)  = f_1arg(function(a) cos(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 function f_tan(a)  = f_1arg(function(a) tan(a))(a);
 
 
 // Function: f_asin()
+// Synopsis: Returns a function to calculate the arcsine of a value.
 // Topics: Function Literals, Math Operators
+// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 // Usage:
 //   fn = f_asin();
 //   fn = f_asin(a);
@@ -1134,12 +1209,13 @@ function f_tan(a)  = f_1arg(function(a) tan(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 function f_asin(a) = f_1arg(function(a) asin(a))(a);
 
 
 // Function: f_acos()
+// Synopsis: Returns a function to calculate the arccosine of a value.
 // Topics: Function Literals, Math Operators
+// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 // Usage:
 //   fn = f_acos();
 //   fn = f_acos(a);
@@ -1148,12 +1224,13 @@ function f_asin(a) = f_1arg(function(a) asin(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 function f_acos(a) = f_1arg(function(a) acos(a))(a);
 
 
 // Function: f_atan()
+// Synopsis: Returns a function to calculate the arctangent of a value.
 // Topics: Function Literals, Math Operators
+// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 // Usage:
 //   fn = f_atan();
 //   fn = f_atan(a);
@@ -1162,12 +1239,13 @@ function f_acos(a) = f_1arg(function(a) acos(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 function f_atan(a) = f_1arg(function(a) atan(a))(a);
 
 
 // Function: f_atan2()
+// Synopsis: Returns a function to calculate the arctangent of `y` and `x`
 // Topics: Function Literals, Math Operators
+// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 // Usage:
 //   fn = f_atan2();
 //   fn = f_atan2(a=);
@@ -1179,7 +1257,6 @@ function f_atan(a) = f_1arg(function(a) atan(a))(a);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_sin(), f_cos(), f_tan(), f_asin(), f_acos(), f_atan(), f_atan2()
 function f_atan2(a,b) = f_2arg(function(a,b) atan2(a,b))(a,b);
 
 
@@ -1189,7 +1266,9 @@ function f_atan2(a,b) = f_2arg(function(a,b) atan2(a,b))(a,b);
 
 
 // Function: f_len()
+// Synopsis: Returns a function to calculate the length of a string or list.
 // Topics: Function Literals, String Operators
+// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 // Usage:
 //   fn = f_len();
 //   fn = f_len(a);
@@ -1198,12 +1277,13 @@ function f_atan2(a,b) = f_2arg(function(a,b) atan2(a,b))(a,b);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 function f_len(a) = f_1arg(function(a) len(a))(a);
 
 
 // Function: f_chr()
+// Synopsis: Returns a function to get a string character from its ordinal number.
 // Topics: Function Literals, String Operators
+// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 // Usage:
 //   fn = f_chr();
 //   fn = f_chr(a);
@@ -1212,12 +1292,13 @@ function f_len(a) = f_1arg(function(a) len(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 function f_chr(a) = f_1arg(function(a) chr(a))(a);
 
 
 // Function: f_ord()
+// Synopsis: Returns a function to get the ordinal number of a string character.
 // Topics: Function Literals, String Operators
+// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 // Usage:
 //   fn = f_ord();
 //   fn = f_ord(a);
@@ -1226,12 +1307,13 @@ function f_chr(a) = f_1arg(function(a) chr(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 function f_ord(a) = f_1arg(function(a) ord(a))(a);
 
 
 // Function: f_str()
+// Synopsis: Returns a function to get the string representation of an arbitrary value.
 // Topics: Function Literals, String Operators
+// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 // Usage:
 //   fn = f_str();
 //   fn = f_str(a);
@@ -1240,12 +1322,13 @@ function f_ord(a) = f_1arg(function(a) ord(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 function f_str(a) = f_1arg(function(a) str(a))(a);
 
 
 // Function: f_str2()
+// Synopsis: Returns a function to concatenate the string representations of two arbitrary values.
 // Topics: Function Literals, String Operators
+// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 // Usage:
 //   fn = f_str2();
 //   fn = f_str2(a=);
@@ -1257,12 +1340,13 @@ function f_str(a) = f_1arg(function(a) str(a))(a);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 function f_str2(a,b) = f_2arg(function(a,b) str(a,b))(a,b);
 
 
 // Function: f_str3()
+// Synopsis: Returns a function to concatenate the string representations of three arbitrary values.
 // Topics: Function Literals, Math Operators
+// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 // Usage:
 //   fn = f_str3();
 //   fn = f_str3(a=);
@@ -1279,7 +1363,6 @@ function f_str2(a,b) = f_2arg(function(a,b) str(a,b))(a,b);
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
 //   c = If given, replaces the third argument.
-// See Also: f_len(), f_chr(), f_ord(), f_str(), f_str2(), f_str3()
 function f_str3(a,b,c) = f_3arg(function(a,b,c) str(a,b,c))(a,b,c);
 
 
@@ -1289,7 +1372,9 @@ function f_str3(a,b,c) = f_3arg(function(a,b,c) str(a,b,c))(a,b,c);
 
 
 // Function: f_floor()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the integer floor of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_floor(), f_ceil(), f_round()
 // Usage:
 //   fn = f_floor();
 //   fn = f_floor(a);
@@ -1298,12 +1383,13 @@ function f_str3(a,b,c) = f_3arg(function(a,b,c) str(a,b,c))(a,b,c);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_floor(), f_ceil(), f_round()
 function f_floor(a) = f_1arg(function(a) floor(a))(a);
 
 
 // Function: f_round()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the integer rounding of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_floor(), f_ceil(), f_round()
 // Usage:
 //   fn = f_round();
 //   fn = f_round(a);
@@ -1312,12 +1398,13 @@ function f_floor(a) = f_1arg(function(a) floor(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_floor(), f_ceil(), f_round()
 function f_round(a) = f_1arg(function(a) round(a))(a);
 
 
 // Function: f_ceil()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the integer ceiling of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_floor(), f_ceil(), f_round()
 // Usage:
 //   fn = f_ceil();
 //   fn = f_ceil(a);
@@ -1326,12 +1413,13 @@ function f_round(a) = f_1arg(function(a) round(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_floor(), f_ceil(), f_round()
 function f_ceil(a)  = f_1arg(function(a) ceil(a))(a);
 
 
 // Function: f_abs()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the absolute value of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 // Usage:
 //   fn = f_abs();
 //   fn = f_abs(a);
@@ -1340,12 +1428,13 @@ function f_ceil(a)  = f_1arg(function(a) ceil(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 function f_abs(a)   = f_1arg(function(a) abs(a))(a);
 
 
 // Function: f_sign()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the sign of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 // Usage:
 //   fn = f_sign();
 //   fn = f_sign(a);
@@ -1354,12 +1443,13 @@ function f_abs(a)   = f_1arg(function(a) abs(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 function f_sign(a)  = f_1arg(function(a) sign(a))(a);
 
 
 // Function: f_ln()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the natural logarithm of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 // Usage:
 //   fn = f_ln();
 //   fn = f_ln(a);
@@ -1368,12 +1458,13 @@ function f_sign(a)  = f_1arg(function(a) sign(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 function f_ln(a)    = f_1arg(function(a) ln(a))(a);
 
 
 // Function: f_log()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the base 10 logarithm of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 // Usage:
 //   fn = f_log();
 //   fn = f_log(a);
@@ -1382,12 +1473,13 @@ function f_ln(a)    = f_1arg(function(a) ln(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 function f_log(a)   = f_1arg(function(a) log(a))(a);
 
 
 // Function: f_exp()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the natural exponent of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 // Usage:
 //   fn = f_exp();
 //   fn = f_exp(a);
@@ -1396,12 +1488,13 @@ function f_log(a)   = f_1arg(function(a) log(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 function f_exp(a)   = f_1arg(function(a) exp(a))(a);
 
 
 // Function: f_sqr()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the square of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 // Usage:
 //   fn = f_sqr();
 //   fn = f_sqr(a);
@@ -1410,12 +1503,13 @@ function f_exp(a)   = f_1arg(function(a) exp(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 function f_sqr(a)   = f_1arg(function(a) a*a)(a);
 
 
 // Function: f_sqrt()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the square root of a given number.
+// Topics: Function Literals, Math Operators
+// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 // Usage:
 //   fn = f_sqrt();
 //   fn = f_sqrt(a);
@@ -1424,12 +1518,13 @@ function f_sqr(a)   = f_1arg(function(a) a*a)(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 function f_sqrt(a)  = f_1arg(function(a) sqrt(a))(a);
 
 
 // Function: f_norm()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the norm of a given vector.
+// Topics: Function Literals, Vectors
+// See Also: f_norm(), f_abs(), f_sign(), f_cross()
 // Usage:
 //   fn = f_norm();
 //   fn = f_norm(a);
@@ -1438,12 +1533,13 @@ function f_sqrt(a)  = f_1arg(function(a) sqrt(a))(a);
 //   argument can optionally be replaced with a constant.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_abs(), f_sign(), f_ln(), f_log(), f_exp(), f_sqr(), f_sqrt()
 function f_norm(a)  = f_1arg(function(a) norm(a))(a);
 
 
 // Function: f_cross()
-// Topics: Function Literals, String Operators
+// Synopsis: Returns a function to calculate the norm of a given vector.
+// Topics: Function Literals, Vectors
+// See Also: f_norm(), f_abs(), f_sign(), f_cross()
 // Usage:
 //   fn = f_cross();
 //   fn = f_cross(a=);
@@ -1455,201 +1551,216 @@ function f_norm(a)  = f_1arg(function(a) norm(a))(a);
 // Arguments:
 //   a = If given, replaces the first argument.
 //   b = If given, replaces the second argument.
-// See Also: f_norm(), f_abs(), f_sign(), f_cross()
 function f_cross(a,b) = f_2arg(function(a,b) cross(a,b))(a,b);
 
 
 // Section: Type Queries
 
 // Function: f_is_def()
+// Synopsis: Returns a function to determine if a value is not `undef`.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_def();
 // Description:
 //   A factory that returns function literals equivalent to `is_def(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_string(), f_is_list()
 function f_is_def(x) = f_1arg(function (x) is_def(x));
 
 
 // Function: f_is_undef()
+// Synopsis: Returns a function to determine if a value is `undef`.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_bool(), f_is_num(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_undef();
 // Description:
 //   A factory that returns function literals equivalent to `is_undef(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_bool(), f_is_num(), f_is_string(), f_is_list()
 function f_is_undef(x) = f_1arg(function (x) is_undef(x));
 
 
 // Function: f_is_bool()
+// Synopsis: Returns a function to determine if a value is a boolean.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_num(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_bool();
 // Description:
 //   A factory that returns function literals equivalent to `is_bool(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_num(), f_is_string(), f_is_list()
 function f_is_bool(x) = f_1arg(function (x) is_bool(x));
 
 
 // Function: f_is_num()
+// Synopsis: Returns a function to determine if a value is a number.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_num();
 // Description:
 //   A factory that returns function literals equivalent to `is_num(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_string(), f_is_list()
 function f_is_num(x) = f_1arg(function (x) is_num(x));
 
 
 // Function: f_is_int()
+// Synopsis: Returns a function to determine if a value is an integer number.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_int();
 // Description:
 //   A factory that returns function literals equivalent to `is_int(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_string(), f_is_list()
 function f_is_int(x) = f_1arg(function (x) is_int(x));
 
 
 // Function: f_is_nan()
+// Synopsis: Returns a function to determine if a value is a number type that is Not a Number (NaN).
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_nan();
 // Description:
 //   A factory that returns function literals equivalent to `is_nan(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_nan(x) = f_1arg(function (x) is_nan(x));
 
 
 // Function: f_is_finite()
+// Synopsis: Returns a function to determine if a value is a number type that is finite.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_finite();
 // Description:
 //   A factory that returns function literals equivalent to `is_finite(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_finite(x) = f_1arg(function (x) is_finite(x));
 
 
 // Function: f_is_string()
+// Synopsis: Returns a function to determine if a value is a string.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_list()
 // Usage:
 //   fn = f_is_string();
 // Description:
 //   A factory that returns function literals equivalent to `is_string(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_list()
 function f_is_string(x) = f_1arg(function (x) is_string(x));
 
 
 // Function: f_is_list()
+// Synopsis: Returns a function to determine if a value is a list.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_list();
 // Description:
 //   A factory that returns function literals equivalent to `is_list(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_list(x) = f_1arg(function (x) is_list(x));
 
 
 // Function: f_is_range()
+// Synopsis: Returns a function to determine if a value is a range.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_range();
 // Description:
 //   A factory that returns function literals equivalent to `is_range(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_range(x) = f_1arg(function (x) is_range(x));
 
 
 // Function: f_is_function()
+// Synopsis: Returns a function to determine if a value is a function literal.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_function();
 // Description:
 //   A factory that returns function literals equivalent to `is_function(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_function(x) = f_1arg(function (x) is_function(x));
 
 
 // Function: f_is_vector()
+// Synopsis: Returns a function to determine if a value is a list of numbers.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_vector();
 // Description:
 //   A factory that returns function literals equivalent to `is_vector(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_vector(a,b) = f_2arg(function (a,b) is_vector(a,b));
 
 
 // Function: f_is_path()
+// Synopsis: Returns a function to determine if a value is a Path (a list of points).
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_path();
 // Description:
 //   A factory that returns function literals equivalent to `is_path(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_path(a,b) = f_2arg(function (a,b) is_path(a,b));
 
 
 // Function: f_is_region()
+// Synopsis: Returns a function to determine if a value is a Region (a list of Paths).
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_region();
 // Description:
 //   A factory that returns function literals equivalent to `is_region(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_region(a) = f_1arg(function (a) is_region(a));
 
 
 // Function: f_is_vnf()
+// Synopsis: Returns a function to determine if a value is a VNF structure.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_vnf();
 // Description:
 //   A factory that returns function literals equivalent to `is_vnf(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_vnf(a) = f_1arg(function (a) is_vnf(a));
 
 
 // Function: f_is_patch()
+// Synopsis: Returns a function to determine if a value is a Bezier Patch structure.
 // Topics: Function Literals, Type Queries
+// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 // Usage:
 //   fn = f_is_patch();
 // Description:
 //   A factory that returns function literals equivalent to `is_patch(a)`.
 // Arguments:
 //   a = If given, replaces the argument.
-// See Also: f_is_undef(), f_is_bool(), f_is_num(), f_is_int(), f_is_string(), f_is_list()
 function f_is_patch(a) = f_1arg(function (a) is_patch(a));