Re: [Vxl-users] vnl_angle()

[Peter V. <Pet...@es...>]

> The current implementation of angle in vnl_vector.txx is
>    acos( abs( cos_angle(a,b) ) )
> 
> Why is the abs there?

Apparently this is meant to give "symmetric" output, i.e.,
angle(a,b) == angle(b,a).

Should probably be documented.


	Peter.