From 218246e080d5abc4764dc4e61c731a5578e4b700 Mon Sep 17 00:00:00 2001
From: Adrian Mariano <avm4@cornell.edu>
Date: Wed, 7 Apr 2021 22:54:46 -0400
Subject: [PATCH] added small triambic icosahedron

---
 polyhedra.scad | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/polyhedra.scad b/polyhedra.scad
index 5a30172..0914a60 100644
--- a/polyhedra.scad
+++ b/polyhedra.scad
@@ -118,6 +118,7 @@ function _unique_groups(m) = [
 //     * `"great dodecahedron"`
 //     * `"small stellated dodecahedron"`
 //     * `"great stellated dodecahedron"`
+//     * `"small triambic icosahedron"`
 //
 // Arguments:
 //   name = Name of polyhedron to create.
@@ -185,6 +186,7 @@ function _unique_groups(m) = [
 //   regular_polyhedron("great dodecahedron");
 //   regular_polyhedron("small stellated dodecahedron");
 //   regular_polyhedron("great stellated dodecahedron");
+//   regular_polyhedron("small triambic icosahedron");
 // Example: Third Archimedean solid
 //   regular_polyhedron(type="archimedean", index=2);
 // Example(Med): Solids that have 8 or 10 vertex faces
@@ -540,6 +542,7 @@ _stellated_polyhedra_ = [
     ["great dodecahedron", "icosahedron", -sqrt(5/3-PHI)],
     ["small stellated dodecahedron", "dodecahedron", sqrt((5+2*sqrt(5))/5)],
     ["great stellated dodecahedron", "icosahedron", sqrt(2/3+PHI)],
+    ["small triambic icosahedron", "icosahedron", sqrt(3/5) - 1/sqrt(3)]
 ];