| Description |
The ArcSin function is a mathematical function giving the value in radians of the Arc Sine of Number.
|
|
| 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 |
| ArcTan |
|
The Arc Tangent of a number, returned in radians |
| Cos |
|
The Cosine of a number |
| Sin |
|
The Sine of a number |
| Tan |
|
The Tangent of a number |
|
|
|
| Example code : The ArcSin of 0.5 gives 30 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
Math, // Unit containing the ArcSin command
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 ArcSin of 0.5 should give 30 degrees
float := ArcSin(0.5);
float := RadToDeg(float); // Convert result to degrees
ShowMessage('ArcSin of 0.5 = '+FloatToStr(float)+' degrees');
end;
end.
|
| Hide full unit code |
ArcSin of 0.5 = 30 degrees
|
|