The following works fine in Maxima (except that I see no grid!?):
plot3d(exp(-(x+1)^2-y^2)-exp(-(x-1)^2-y^2),[x,-2,2],[y,-2,2],['grid,40,40]);
But how can I change this to a contour plot? This possibility is mentioned
in the manual but I cannot find out how to do it....
Also, I cannot find out how to include LINLOG in order to make a
logarithmic plot with plot2D.
Yours,
Poul Riis
Lemvig Gymnasium
Denmark