System.Math.ArcCos
Delphi
function ArcCos(const X : Extended) : Extended; overload;
function ArcCos(const X : Double) : Double; overload;
function ArcCos(const X : Single) : Single; overload;
C++
extern DELPHI_PACKAGE System::Extended __fastcall ArcCos(const System::Extended X)/* overload */;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.Math.pas System.Math.hpp |
System.Math | System.Math |
Description
Calculates the inverse cosine of a given number.
ArcCos returns the inverse cosine of X.
X must be between -1 and 1.
The return value is in the range [0..Pi], in radians.