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Trig fix

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This commit is contained in:
Richard Milewski 2026-01-28 14:40:24 -08:00
parent 7db0b2b542
commit 0d2118b8a2
1 changed files with 17 additions and 4 deletions
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21
trigonometry.scad
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@ -193,15 +193,13 @@ function ang_hyp_to_adj(ang,hyp) = hyp_ang_to_adj(hyp, ang);
// Function: opp_ang_to_adj()
// Alias: ang_opp_to_adj()
// Synopsis: Returns the adjacent side length from the length of the opposite side and the angle.
// Synopsis: Returns the adjacent side length from the length of the opposite side and the primary angle.
// Topics: Geometry, Trigonometry, Triangles
// See Also: adj_ang_to_hyp(), adj_ang_to_opp(), adj_opp_to_ang(), adj_opp_to_hyp(), hyp_adj_to_ang(), hyp_adj_to_opp(), hyp_ang_to_adj(), hyp_ang_to_opp(), hyp_opp_to_adj(), hyp_opp_to_ang(), opp_ang_to_adj(), opp_ang_to_hyp()
// Usage:
// adj = opp_ang_to_adj(opp,ang);
// adj = ang_opp_to_adj(ang,opp);
// Description:
// Given the angle of the primary corner of a right triangle, and the length of the side opposite of it,
// Given the length of the side opposite the primary corner, and the angle of the primary corner of a right triangle,
// returns the length of the adjacent side.
// Arguments:
// opp = The length of the side of the right triangle that is opposite from the primary angle.
@ -212,7 +210,22 @@ function opp_ang_to_adj(opp,ang) =
assert(is_finite(opp) && opp>=0, "Triangle side length should be a positive number." )
assert(is_finite(ang) && ang>-90 && ang<90, "The angle should be an acute angle." )
opp/tan(ang);
function ang_opp_to_adj(ang,opp) = opp_ang_to_adj(opp,ang);
// Function: ang_opp_to_adj()
// Synopsis: Returns the adjacent side length from the primary angle and the length of the opposite side.
// Topics: Geometry, Trigonometry, Triangles
// See Also: adj_ang_to_hyp(), adj_ang_to_opp(), adj_opp_to_ang(), adj_opp_to_hyp(), hyp_adj_to_ang(), hyp_adj_to_opp(), hyp_ang_to_adj(), hyp_ang_to_opp(), hyp_opp_to_adj(), hyp_opp_to_ang(), opp_ang_to_adj(), opp_ang_to_hyp()
// Usage:
// adj = ang_opp_to_adj(ang,opp);
// Description:
// Given the angle of the primary corner of a right triangle, and the length of the side opposite of it,
// returns the length of the adjacent side.
// Arguments:
// ang = The angle in degrees of the primary corner of the right triangle.
// opp = The length of the side of the right triangle that is opposite from the primary angle.
// Example:
// adj = ang_opp_to_adj(30,8); // Returns: 4
function ang_opp_to_adj(ang,opp) = opp_ang_to_adj(opp,ang);