I do not recall having trouble with parametric_plot3d() before today.
I'm still not having trouble except when I try using it to plot a
surface.
I am running Sage through a browser (Firefox) at the website www.sagenb.org
, so I presume it is the latest in programming. A simple command like
this one adapted from the Sage reference manual (the one in the manual
refines the plot using several switches):
var('u v')
parametric_plot3d((cos(u), sin(u) + cos(v), sin(v)), (u, 0, 2*pi),
(v, -pi, pi))
is giving me the following output:
Traceback (click to the left of this block for traceback)
...
ImportError: liblapack.so: cannot open shared object file: No such file
or directory
I quit the notebook and started it up again, hoping that would clear
any memory setting that might make this not work. Does this seem like
that kind of problem (and I need to do more than just quit the
notebook), or is something else going on?
Thomas L. Scofield
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Associate Professor
Department of Mathematics and Statistics
Calvin College
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