You are here: Symbol Reference > Math387 Namespace > Functions > Math387.ArcTan2 Function
MtxVec VCL
ContentsIndex
PreviousUpNext
Math387.ArcTan2 Function
Math387 | Functions | See Also
Collapse All

Inverse tangens of Y/X.

Pascal
function ArcTan2(const Y: double; const X: double): double; overload;
File
Returns

Returns the inverse tangens of Y/X, and returns an angle in the correct quadrant.

Description

The return value will fall in the closed interval [-PI,PI] radians.

Notes

ArcTan is calculated as ArcTan2(1, X).

See Also
Group
Links
Copyright (c) 1999-2025 by Dew Research. All rights reserved.
What do you think about this topic? Send feedback!