Re: [Matplotlib-users] How to mix maths & text in labels ?

[John H. <jdh...@ac...>]

>>>>> "Nicolas" == Nicolas Girard <nic...@ne...> writes:

    Nicolas> Hi all, I need to mix maths & text in labels such as
    Nicolas> title and xlabel.

    Nicolas> I first tried the most intuitive way:


    Nicolas>   title(r"$x$ and $y$")

    Nicolas> but it appeared not to work (don't focus of my silly
    Nicolas> sample title, the real one does make sense ;-)

    Nicolas> Then I tried

    Nicolas>   title(r"$x$ \text{and} $y$")

    Nicolas> but I got an error related to the fact that
    Nicolas> is_string_like() returned False when passing my title
    Nicolas> string to it.


Currently, matplotlib mathtext handling does not allow "embedded" math
expressions.  So the whole expression must be written in math mode.
This is a pain and something we will fix when we can.

In the next release of matplotlib, due out soon, we have support for
mathematical expressions using TeX in the *Agg and PS backends.  So if
you have tex (and a few other tools) installed on your systems, you
can use it to render all the text in your matplotlib figure.

In the meantime, you can do something like this

  title(r'$x\ \rm{and}\ y$')

JDH