Delphi Basics : Tan command

DelphiBasics

Tan
Function

The Tangent of a number

Math unit

function Tan(const Number Extended):Extended;

Description

The Tan function is a mathematical function giving the Tangent 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
Sin		The Sine of a number

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Example code : Get the Tangent of 45 degrees

var
  float : single;
begin
  // The Tangent of 45 degrees = 1.0
  float := Tan(PI/4);  // = 180/4 = 45 degrees
  ShowMessage('Tan(PI/4) = '+FloatToStr(float));
end;

Show full unit code

Tan(PI/4) = 1