[Maxima-bugs] [ maxima-Bugs-701169 ] plot3d scaling problems

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Bugs item #701169, was opened at 2003-03-10 17:08
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=701169&group_id=4933

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Stavros Macrakis (macrakis)
Assigned to: Nobody/Anonymous (nobody)
Summary: plot3d scaling problems

Initial Comment:
Plot3d seems to do something horrible with scaling.

Look at the following simple plot.

       plot3d(x*y,[x,0,.1],[y,0,.1])

This gives a stepped plot, with only 10 distinct z values.

Along the same lines,

       plot3d(x*y/1000,[x,0,1],[y,0,1]);

gives a plot with only *2* distinct z-values.

And for

       plot3d(x*y,[x,0,.01],[y,0,.01])
and
       plot3d(x*y/10000,[x,0,1],[y,0,1]);

I get division by zero.

Maxima version: 5.9.0
Maxima build date: 19:10 2/9/2003
host type: i686-pc-mingw32
lisp-implementation-type: Kyoto Common Lisp
lisp-implementation-version: GCL-2-5.0


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=701169&group_id=4933