# EXSLT - math:atan2

Implementer Page: math.atan2.html Function Package: math.atan2.zip #### Function Syntax
    number math:atan2(number, number)
The `math:atan2` function returns the angle ( in radians ) from the X axis to a point (y,x). Value1 is a number argument cooresponding to y of point (y,x). Value2 is a number argument cooresponding to x of point (y,x). ## Implementations The following XSLT processors support `math:atan2`: 4XSLT, from 4Suite. (version 0.12.0a3) libxslt from Daniel Veillard et al. (version 1.0.19) Implementations of `math:atan2` are available in the following languages: Msxsl (by James Fuller) Javascript (by James Fuller)

http://www.exslt.org/math/functions/atan2/index.html last modified 2002-11-12