[pstricks] Some Questions about pst-3dplot

[VAFA KHALIGHI]

1- Is there any guide where I can learn post script notation for
mathematical expressions well? i.e *x^3* is written as *x 3 exp* in
postscript notation.

2- When you want to skech a function of two variables, do you really need to
have
**
*\psset{Alpha=25,Beta=15}*
 and what happenes if you do not put it? will you get the wrong graph?

3- How do you know which valuve of Alpha and Beta you need to use?

I attach my current assignment  solution here as a pdf file and I sketched
the two functions of two variables by without calling Alpha and Beta.

Can you please look at the graphs in my file and say I am on the right track
or not?

Thanks
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://tug.org/pipermail/pstricks/attachments/20080314/bbbd1565/attachment.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ass1.pdf
Type: application/pdf
Size: 901043 bytes
Desc: not available
Url : http://tug.org/pipermail/pstricks/attachments/20080314/bbbd1565/attachment.pdf