On Fri, 2 Aug 2002 09:36:44 +0200
Maths Mathematica Geometry Crew <mathematica@linfe.it> wrote:
> I am still not able to plot a function of three vars, one of them
> having been fixed. Let us call t the third variable; here are my last
> two attempts:
>
>
> --1:
>
> (C4) ff(x,y,t) := x*t/(y-3);
>
> x t
> (D4) ff(x, y, t) := -----
> y - 3
>
> (C6) plot3d(ff(x,y,t),[x,2,3],[y,2,4],[nticks,100]);
>
> Error: Expected 3 args but received 2 args
> Fast links are on: do (si::use-fast-links nil) for debugging
> Error signalled by MACSYMA-TOP-LEVEL.
> Broken at LAMBDA. Type :H for Help.
> MAXIMA>>
Sorry, I don't understand what did you want to plot? The function above has singularity as well......
If you have the function of three vars it could be visualized in 4 dim space or you might look at section
in 3D by plotting the sequence of graphs ff(x,y,{t=1...}).
I feel, you meant the parametric plot like, [x(t),y(t),z(t)]? As far as I know, maxima is able to make parametric plot
only in 2D.
rgds,
Valerij