| Description |
The Cos function is a mathematical function giving the Cosine value of a Number value given radians.
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| Notes |
The System unit supports only the following angular functions:
ArcTan
Sin
Cos
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| Related commands |
| ArcCos |
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The Arc Cosine of a number, returned in radians |
| ArcSin |
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The Arc Sine of a number, returned in radians |
| ArcTan |
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The Arc Tangent of a number, returned in radians |
| Sin |
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The Sine of a number |
| Tan |
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The Tangent of a number |
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| Example code : Get the Cosine of 60 degrees |
// Full Unit code.
// -----------------------------------------------------------
// You must store this code in a unit called Unit1 with a form
// called Form1 that has an OnCreate event called FormCreate.
unit Unit1;
interface
uses
// The System unit does not need to be defined
SysUtils,
Forms, Dialogs;
type
TForm1 = class(TForm)
procedure FormCreate(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm} // Include form definitions
procedure TForm1.FormCreate(Sender: TObject);
var
float : single;
begin
// The Sine of 60 degrees = 0.5
float := Cos(PI/3); // = 180/3 = 60 degrees
ShowMessage('Cos(PI/3) = '+FloatToStr(float));
end;
end.
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| Hide full unit code |
Cos(PI/3) = 0.5
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