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 # Math::Trigo

 Last update: 17.07.2025 

Common trigonometric functions and their inverse.

Operator NameDescription[ArcCosine](trigo__arccosine.md)Return the arccosine of a value.[ArcSine](trigo__arcsine.md)Return the arcsine of a value.[ArcTan](trigo__arctan.md)Return the arctangent of a value, in the range \]-PI/2, PI/2\[.[ArcTan2](trigo__arctan2.md)Return the arctangent of y/x in the range \]-PI, PI\[.[Cosine](trigo__cosine.md)Return the cosine of an angle.[ReducePi](trigo__reducepi.md)Reduces an angle to modulo -PI : PI[ReducePi2](trigo__reducepi2.md)Reduce an angle to -PI/2 PI/2[Sine](trigo__sine.md)Return the Sine of an angle.[Tan](trigo__tangent.md)Returns the tangent of an angle.**Parent topic:**[Libraries](../../libraries/libraries.md)