Calculates the inverse tangent and returns an angle in radians

arctan2(x, n)

Returns: double

This function returns the inverse tangent of y/x in radians, where y is the opposite side of triangle and x is the adjacent side of triangle. If you want to return degrees instead of radians use function darctan2().

double value;
value = arctan2(1, -1);

This code set value to 2,356195.

double value;
value = arctan2(1, 0);

This code set value to 1,570797.

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