Plotting 3D vectors?



Mario Rodriguez wrote:

>Hello,
>3d vectors have been added to the draw package this week. Download
>draw.lisp (v.1.10) from here
>http://maxima.cvs.sourceforge.net/maxima/maxima/share/draw/draw.lisp
>and place it in your local share/draw folder. You need maxima 5.12 and
>gnuplot 4.2 to run this package.
>  
>
I don't have maxima 5.12 and I don't not know what gnuplot I have. I use 
the
wxmaxima 0.7.0a interface. How do I update? Do I need to uninstall first?

Thanks