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Returns the arccosine of a given value.
This function returns the arccosine of
X rounded to the current
global accuracy. The domain of this functions ranges between -1
and 1.
- @param X Value of which to compute the arccosine.
- @return The arccosine of X rounded to the current global accuracy.
Fn.SetAccuracy(20);
R := Fn.ArcCos(1/2);
Dec(R, 30);
1.04719755119659774615
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