| Description |
The ArcTan function is a mathematical function giving the value in radians of the Arc Tangent of Number.
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| Notes |
The System unit supports only the following angular functions:
ArcTan
Sin
Cos
Special floating point values INF, -INF yield +PI/2 and -PI/2 respectively.
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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 |
| Cos |
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The Cosine of a number |
| 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 ArcTan of PI/2 |
var
float : single;
begin
// The ArcTan of PI/2 should give 1.0
float := ArcTan(PI/2);
ShowMessage('ArcTan of PI/2 = '+FloatToStr(float));
end;
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| Show full unit code |
ArcTan of PI/2 = 1.00388479232788
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