transform_xy error: value NIL is not of type DOUBLE-FLOAT
Subject: transform_xy error: value NIL is not of type DOUBLE-FLOAT
From: Adrian Brown
Date: Thu, 23 May 2013 13:09:20 -0700
Hi all,
I was wondering if anyone can help me make this work?
wxplot3d([r,theta,sqrt(sin(theta))],[r,0,1],[theta,0,2*%pi],
[gnuplot_pm3d,true],
[gnuplot_preamble, "set pm3d
map"],[grid,1,1],[transform_xy,make_transform([r,theta,z],r*cos(theta),r*sin(theta),z)])$
The error I get is:
Maxima encountered a Lisp error:
The value NIL is not of type DOUBLE-FLOAT.
This is an error within transform_xy because when I remove the
transform_xy is works fine.
Thanks for any help with this!
Adrian
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