plotting arrow in python

[rudra]

On Nov 22, 6:58 am, Gregory Ewing <greg.ew... at canterbury.ac.nz> wrote:
> > rudra wrote:
>
> >> 0.0 0.0 0.1
> >> 0.0 0.1 0.1
> >> 0.1 0.0 0.5
>
> >> like that! the first two column are coordinate and 3rd one is
> >> magnitude of moment (say: x y,m)!! so what i want to do is draw an
> >> arrow of magnitude(m) in the position (x,y).
>
> There seems to be some information missing there.
> How do you know what direction to draw the arrow in?
>
> --
> Greg

Greg,
you are right direction is also needed. But as a beginner, I am trying
to make it simple and all arrows are collinear along x axis!!
then i have to  try non collinear as well.
thank you