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Returns the cosine of a given value.
This function returns the cosine of
X rounded to the current
global accuracy.
- @param X Value of which to compute the cosine.
- @return The cosine of X rounded to the current global accuracy.
Fn.SetAccuracy(20);
R := Fn.Cos(1);
Dec(R, 30);
0.5403023058681397174
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