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ArcTan

Calculates the arctangent of a given number.

Structure​

ArcTan(number): Extended;

Parameters​

Return value​

Description​

Calculate other trigonometric functions using Sin, Cos, and ArcTan in the following expressions:

Tan(x) = Sin(x) / Cos(x)

ArcSin(x) = ArcTan (x/sqrt (1-sqr (x)))

ArcCos(x) = ArcTan (sqrt (1-sqr (x)) /x)