[Matplotlib-users] Using math text!

[Ssebuliba, J, M. <jo...@su...>]

Hi all,

When I use;
text(0.6, 0.6, r'$\mathcal{A}\mathrm{sin}(2 \omega t)$', fontsize=20)

I get an error message below;
File "/usr/lib/python2.5/site-packages/matplotlib/mathtext.py", line 616, in _get_info
    raise ValueError('unrecognized symbol "%s"' % sym)
ValueError: unrecognized symbol "\mathr", unrecognized symbol "\mathcal"

When I replace \mathrm with \mbox or \text, the error message I get is basically the same, only that this time, the last line appears as;
unrecognized symbol "\mbox", unrecognized symbol "\text"

How should I fix this problem?


Many thanks,
JOE.