Delphi Basics : Sin command

DelphiBasics

Sin
Function

The Sine of a number

System unit

function Sin(const Number Extended):Extended;

Description

The Sin function is a mathematical function giving the Sine value of a Number value given radians.

PI radians

= 180 degrees

Notes

The System unit supports only the following angular functions:

ArcTan
Sin
Cos

Related commands

ArcCos		The Arc Cosine of a number, returned in radians
ArcSin		The Arc Sine of a number, returned in radians
ArcTan		The Arc Tangent of a number, returned in radians
Cos		The Cosine of a number
Tan		The Tangent of a number

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Example code : Get the Sine of 30 degrees

var
  float : single;
begin
  // The Sine of 30 degrees = 0.5
  float := Sin(PI/6);  // = 180/6 = 30 degrees
  ShowMessage('Sin(PI/6) = '+FloatToStr(float));
end;

Show full unit code

Sin(PI/6) = 0.5