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{{alias}}( y, x )
Computes the angle in the plane (in radians) between the positive x-axis and
the ray from (0,0) to the point (x,y).
Parameters
----------
y: number
Coordinate along y-axis.
x: number
Coordinate along x-axis.
Returns
-------
out: number
Angle (in radians).
Examples
--------
> var v = {{alias}}( 2.0, 2.0 )
~0.785
> v = {{alias}}( 6.0, 2.0 )
~1.249
> v = {{alias}}( -1.0, -1.0 )
~-2.356
> v = {{alias}}( 3.0, 0.0 )
~1.571
> v = {{alias}}( -2.0, 0.0 )
~-1.571
> v = {{alias}}( 0.0, 0.0 )
0.0
> v = {{alias}}( 3.0, NaN )
NaN
> v = {{alias}}( NaN, 2.0 )
NaN
See Also
--------
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