is_axis Function

function is_axis(ax, iflag)

This is a logical function that returns .TRUE. if $\text{ax}$ is the versor of the axis x ($\text{iflag}=1$) or y ($\text{iflag}=2$) or z ($\text{iflag}=3$).

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=DP)				::	ax(3)
integer				::	iflag

Return Value logical