math.sin-cos Sine and cosine of an angle in radians from + - * / only, so every language returns the same doubles. sin_cos in Python mathtrigonometrysincos 1.0.1py rs ts10 tests
construction.roof-pitch Roof pitch in degrees, rafter length and roof slope area from span, rise and length. roof_pitch in Python constructionroofpitchrafter 1.0.0py rs ts15 tests
math.atan Arctangent in radians from + - * / only (fdlibm's method), so every language returns the same double. atan in Python mathtrigonometryatanarctan 1.0.1py rs ts22 tests