OpenOffice3.org Calc 3. Mathematical Functions
ATAN2(Number_x;Number_y) Function
Calculates the arctangent of the
coordinates specified by the arguments. The argument “Number_x” contains a
numeric value that specifies the X-coordinate. The argument “Number_y” contains
a numeric value that specifies the Y-coordinate. This function returns the
result in radians. The result of the function is between -pi and pi. For example:
=ATAN2(10;20) Returns 1,107.
=ATAN2(30;30) Returns 0,185.