ArcTan

function ArcTan(const Number Extended):Extended;

The ArcTan function is a mathematical function giving the value in radians of the Arc Tangent of Number.

PI radians = 180 degrees

Example:

Base Syntax

 var
   floatValue : single;
 
 const
   PI = 3.14;
 
 begin
   // The ArcTan of PI/2 should give 1.0
   floatValue := ArcTan(PI/2);
   ShowMessage('ArcTan of PI/2 = '+FloatToStr(floatValue));
 end;

TRObject Syntax

 var
   floatValue : single;
 
 const
   PI = 3.14;
 
 {
   // The ArcTan of PI/2 should give 1.0
   floatValue = ArcTan(PI/2);
   ShowMessage('ArcTan of PI/2 = '+FloatToStr(floatValue));
 }

Output:

ArcTan of PI/2 = 1,00365507798033