Could this also be the source of my problem? Code like
var('x y z t')
p1 = parametric_plot3d((x,0,z), (x,-1.2,1.2), (z,-1.2,1.2),
color='green', opacity=.65)
p2 = parametric_plot3d((x,2-x,z), (x,-1.2,1.2), (z,-1.2,1.2),
color='green', opacity=.65)
p3 = parametric_plot3d((sin(t), y, cos(t)), (t,0,2*pi), (y,-0.5,3),
color='blue', opacity=.65)
show(p1+p2+p3)
resulted in nothing at all, when before I've received a nice 3D plot.
One student told me this am he has been experiencing this kind of
behavior back into the weekend. We (my students and I) are all
working off of sagenb.org.
On Mar 1, 2010, at 11:29 AM, Dana Ernst wrote:
I was attempting to convince my calculus students this morning in
class to play with Sage when doing their homework instead of using
Wolfram|Alpha all the time. However, this failed miserably because
maxima wasn't working on sagenb.org (at least it wasn't around 10:30
AM EST and it still isn't working as I type this email). When I
entered stuff like
integral(x*e^(-x),x)
I got an error message about maxima:
Traceback (click to the left of this block for traceback)
...
TypeError: Unable to start maxima because the command 'maxima-
noreadline
--userdir="/tmp/sagenbws/maxima" -p
"/usr/local/sage2/local/bin/sage-maxima.lisp"' failed.
Is this a problem on my end or is something up with sagenb.org?
Thanks.
Dana Ernst, Ph.D.
Assistant Professor
Department of Mathematics
Plymouth State University
MSC 29, 17 High Street
Plymouth, NH 03264-1595
Email: [email protected]
Web Page: http://oz.plymouth.edu/~dcernst
Office: Hyde 312
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Thomas L. Scofield
--------------------------------------------------------
Associate Professor
Department of Mathematics and Statistics
Calvin College
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