13.3.0 Cos

Cos

Declaration:: Function Cos (X : Real) : Real;
Description:: Cos returns the cosine of X, where X is an angle, in radians.
If the absolute value of the argument is larger than 2^63, then the result is undefined.
Errors:: None.
See also:: Arctan (453), Sin (574)

Listing: refex/ex12.pp

Program Example12;

{ Program to demonstrate the Cos function. }

Var R : Real;

begin
  R:=Cos(Pi);    { R:=-1 }
  R:=Cos(Pi/2);  { R:=0  }
  R:=Cos(0);     { R:=1  }
end.

[next] [prev] [prev-tail] [front] [up]