On Tue, 28 Jul 2015 at 16:01 Joao Quinta da Fonseca <
[email protected]> wrote:
> I am trying to use LaTeX on the ylabel of a plot using:
>
> plt.ylabel("$\alpha$”)
>
> and I am seeing very inconsistent behaviour. If I use $\alpha$ I get an
> error (see below), but \gamma is fine. $\tau does not give an error but
> plots a strange character.
>
Can you help? thanks
>
This is to do with how Python handles strings and is not a matplotlib
issue. The \ is an escape character in Python strings but only for certain
letters e.g. \t is a tab character etc:
In [3]: print('$\tau$')
$ au$
In [4]: print('$\alpha$')
$lpha$
\g is not an escape so:
In [5]: print('$\gamma$')
$\gamma$
To include slashes in your string you either need to double them up or use
raw strings:
In [8]: print(r'$\alpha$')
$\alpha$
In [9]: print('$\\alpha$')
$\alpha$
--
Oscar
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