System.BuiltInArcTan2
Delphi
function BuiltInArcTan2(Y, X: Real): Extended; overload;
function BuiltInArcTan2(Y, X: Real): Double; overload;
function BuiltInArcTan2(Y, X: Real): Single; overload;
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
function | public | System.pas | System | System |
Description
Calculates the arctangent angle and quadrant of a given number.
BuiltInArcTan2 calculates ArcTan(Y/X
), and returns an angle in the correct quadrant. The values of X
and Y
must be between –264 and 264. The return value is from -Pi to Pi radians.
Compiler Support
The following table shows which Delphi compilers support this function:
DCC32 | DCC64 | DCCOSX | DCCAARM | DCCIOSARM | DCCIOSARM64 | DCCIOS32 |
---|---|---|---|---|---|---|
|
|