I changed the code for the grid lines in solids and in hue plots. In previous versions, all grid lines where visible. So you had a choice between many grid lines or a fine plot. Now there is a default of 10 grid lines.
If you wished 10 grid lines in earlier versions, you can get this with n=10.
The command for this was
and some adjustments with the cursor and the center (press c). By the way, I deselect the square graphics for such plots and use a separate plot window.
For shaded plots, the same is available too, if you specify the grid parameter.
The command was
>plot3d("exp(-(x^2+y^2))*(x^2+3*y^2)", ... > angle=60°,>user,r=3,fscale=1,>spectral,n=100,grid=10,zoom=3):
Moreover, there is a new option for plots of complex grids.
>r=linspace(0,1,100); phi=linspace(0,2pi,400); z=r*exp(I*phi'); ... > plot2d(exp(z),cgrid=10):