F64_ATanQuad()

Syntax

pointer.double = F64_ATanQuad(x.double, y.double [, result.double])

Description

Calculates the Arcus Tangent of Y/X, i.e. the angle between the Line from 0|0 to X|Y and the X Axis.

The result is stored in n1 or, if the optional parameter is given, in result.