hi all,

two quick questions about labels. first, is there a way to make

subscripts/superscripts *without* using TeX in labels? For example, I

use helvetica in all my labels and I want to plot something like:

plt.xlabel("log10") where "10" is a subscript of "log", but without

doing: plt.xlabel(r"$\log_{10}$"), since that will use LaTeX fonts

instead of my helvetica font.

second question, when using TeX, I tried the following TeX command in labels:

plt.annotate(r"\frac{\sigma}{\sqrt{\mu}}", ....) but it complains that

"not all arguments converted during string formatting" -- but it seems

like correct TeX to me. if I try r"\frac{1}{2}" then it works, but

using \sigma and \sqrt inside breaks it.. any idea how to fix this?

thanks.