Thanks for your help.

Thanks for your help.

Thanks for your help. But I need to know what is wrong with my codes. I use Maple 8.

Thanks for your help. But I need to know what is wrong with my codes. I use Maple 8.

My code is like this:

with(linalg):with(plots):
k:=vector([sqrt(2)-1,-1,1]);
k:=normalize(k);
i:=vector([1,sqrt(2)-1,0]);i:=normalize(i);
 j:=crossprod(k,i);
dotprod(k,i);
dotprod(i,j);
dotprod(j,k);
B:=stackmatrix(i,j,k);
orthog(B);
det(B);

It does not produce the correct vector, j.

My code is like this:

with(linalg):with(plots):
k:=vector([sqrt(2)-1,-1,1]);
k:=normalize(k);
i:=vector([1,sqrt(2)-1,0]);i:=normalize(i);
 j:=crossprod(k,i);
dotprod(k,i);
dotprod(i,j);
dotprod(j,k);
B:=stackmatrix(i,j,k);
orthog(B);
det(B);

It does not produce the correct vector, j.

Yes those images displayed at http://xahlee.org/surface/gallery.html are plotted by Mathematica. I  had expected that Maple can do as well as Mathematica in plotting images, but  I am not so sure now.

Yes those images displayed at http://xahlee.org/surface/gallery.html are plotted by Mathematica. I  had expected that Maple can do as well as Mathematica in plotting images, but  I am not so sure now.

Your examples let me know that the control of grids is imporatant in 3Dplot.

Your examples let me know that the control of grids is imporatant in 3Dplot.

Thanks for your suggestion and information..

Thanks for your suggestion and information..

Thanks for the wonderful image. It seems that Maple (especially the latest version)can do much better than I expected.  So I have to learn more of its features  (old and new)  in order to do a better job of plotting images.

Thanks for the wonderful image. It seems that Maple (especially the latest version)can do much better than I expected.  So I have to learn more of its features  (old and new)  in order to do a better job of plotting images.

I agree with you. Maplesoft should make improvement on axes thickness.