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The Arc-tangent Function

Calling Sequence:
arctan(x)
Parameters:
x : real

Returns: real

Synopsis: This function returns the arc-tangent of the parameter x. This value is in the range $[-\pi/2 \ldots \pi/2]$.

Examples:

> arctan(5);
See also: sin, cos, tan




Gaston Gonnet
1998-09-15