Symbian
Symbian OS Library

SYMBIAN OS V9.3

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Location: math.h

atan()

IMPORT_C double atan(double);

Description

Calculate arctangent. Performs the trigonometric arctangent operation on x and returns an angle in the range from -PI/2 to PI/2 expressed in radians.

Parameters

double

Value whose arctangent has to be calculated.

Return value

double

Arctangent of arg1.