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ATAN2

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This function calculates the arctangent of the specified x- and y-coordinates.

ATAN2(*x*,*y*)

This function can take real numbers as arguments.

The arctangent is the angle from the x-axis to a line containing the origin (0, 0) and a point with coordinates (*x*, y).

The result is given in radians between –PI and PI, excluding –PI. If you want to convert the result to degrees, multiply the result by 180/PI.

Accepts numeric data. Returns numeric data.

ATAN2(A1,E3)

ATAN2(R1C1,R3C5)

ATAN2(1,1) gives the result 0.7853981634

This function is available in product version 1.0 or later.

ACOS | ASIN | ATAN | TAN | Math and Trigonometry Functions