Gambas Documentation - /lang/atan2

/lang/atan2

# ATan2

Angle = ATan2 ( Y , X ) Angle = Atn2 ( Y , X )

This function computes the arc tangent of the two variables X and Y. It is similar to calculating the arc tangent of Y / X, except that the signs of both arguments are used to determine the quadrant of the result.

The function returns the result in radians, which is between -π and π (inclusive).

This is the same function as Ang except that the arguments are inverted.

### Example

    Print Deg(ATan2(1, -1))

    135

### See also

- Trigonometric Functions