DelphiBasics
ArcTan
Function
The Arc Tangent of a number, returned in radians System unit
 function ArcTan ( const Number : Extended ) : Extended;
Description
The ArcTan function is a mathematical function giving the value in radians of the Arc Tangent of Number.
 
PI radians  = 180 degrees
Notes
The System unit supports only the following angular functions:

ArcTan
Sin
Cos


Special floating point values INF, -INF yield +PI/2 and -PI/2 respectively.
Related commands
ArcCos The Arc Cosine of a number, returned in radians
ArcSin The Arc Sine of a number, returned in radians
Cos The Cosine of a number
Sin The Sine of a number
Tan The Tangent of a number
 Author links

 Buy Website Traffic at
 Buywebsitetrafficexperts.com

 Buy Proxies at
 Buyproxies.io
 
 Download this web site as a Windows program.


 
Example code : Get the ArcTan of PI/2
var
  float : single;
begin
  // The ArcTan of PI/2 should give 1.0
  float := ArcTan(PI/2);
  ShowMessage('ArcTan of PI/2 = '+FloatToStr(float));
end;
Show full unit code
   ArcTan of PI/2 = 1.00388479232788
 
Delphi Programming Neil Moffatt 2002 - 2016. All rights reserved.  |  Home Page