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SpreadJS Documentation / Formula Reference / Formula Functions / ATAN2
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    ATAN2
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    This function calculates the arctangent of the specified x- and y-coordinates.

    Syntax

    ATAN2(x,y)

    Arguments

    This function can take real numbers as arguments.

    Remarks

    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.

    Data Types

    Accepts numeric data. Returns numeric data.

    Examples

    ATAN2(A1,E3)

    ATAN2(R1C1,R3C5)

    ATAN2(1,1) gives the result 0.7853981634

    See Also