## 295 Reputation

16 years, 127 days

## Thanks for your help. But I need to know...

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...

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(...

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(...

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.

## Plot3d Maple vs Plot3DMathematica...

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.

## Plot3d Maple vs Plot3DMathematica...

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.

## grid...

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

## grid...

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

## Postscript...

Thanks for your suggestion and information..

## Postscript...

Thanks for your suggestion and information..

## wonderful image...

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.

## wonderful image...

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.

## Good suggestion...

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

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