Computing the cosine value of the specified number in radians.

 

Syntax

function Cos(x: extended): extended;

 

Parameters and return values

Parameter

Type

Value

x

extended

number from which you need to compute the cosine.

 

Function result

Cosine of the number in radians. Pi radian equals to 180 degrees.

 

Example

const
  alpha = 30; // 30 degrees
var
  x: extended;
begin
  x := sin(alpha) * sin(alpha) + cos(alpha) * cos(alpha);
  mLogScript(inttostr(trunc(x)), ''); // must be equal to 1
end.

Script work result

[08:13:20] (Log "Cos"): 1
 

See also

IntToStr
mLogScript

Trunc