[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'System' (#rtl)

sin

Calculate sine of angle

Declaration

Source position: mathh.inc line 95

function sin(

  d: ValReal

):ValReal;

Description

Sin returns the sine of its argument 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

Cos

  

Calculate cosine of angle

Pi

  

Return the value of PI.

Exp

  

Exponentiate

Ln

  

Calculate logarithm

Example

Program Example62;

{ Program to demonstrate the Sin function. }

begin
  Writeln (Sin(Pi):0:1);   { Prints 0.0 }
  Writeln (Sin(Pi/2):0:1); { Prints 1.0 }
end.

Documentation generated on: Nov 16 2015