Unfortunately maxima doesn't seem to have a non-interactive mode,
which is needed for the SAGE interface. If any SAGE call leads
to maxima interactively answering questions, then the questions
can't be answered and the maxima session may hang.
See the discussion at http://www.ma.utexas.edu/pipermail/maxima/2005/011061.html for some ideas about how to fix this problem. An
example that illustrates this problem is
maxima.eval('integrate (exp(a*x), x, 0, inf)')
.
Release 2006.05.25, documentation updated on May 25, 2006.
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