function ArcSin ( const Number : Extended ) : Extended;
Description
The ArcSin function is a mathematical function giving the value in radians of the Arc Sine of Number.
PI radians = 180 degrees
Notes
The System unit supports only the following angular functions:
ArcTan
Sin
Cos
Related commands
ArcCos The Arc Cosine of a number, returned in radians
ArcTan The Arc Tangent of a number, returned in radians
Cos The Cosine of a number
Sin The Sine of a number
Tan The Tangent of a number
Example code : The ArcSin of 0.5 gives 30 degrees
var
float : single;
begin
// The ArcSin of 0.5 should give 30 degrees
float := ArcSin(0.5);
float := RadToDeg(float); // Convert result to degrees
ShowMessage('ArcSin of 0.5 = '+FloatToStr(float)+' degrees');
end;
Show full unit code
ArcSin of 0.5 = 30 degrees