math in axes labels for gnuplot (epslatex terminal) not formatted correctly

问题

Using the following script in gnuplot (v 5.0) to generate a graph

set terminal epslatex

unset key

set xlabel "$\zeta$"
set ylabel "$\rho$"

set output "strange_graph.tex"

plot sin(x)

set terminal wxt
set o

along with a latex document to include it,

\documentclass{article}
\usepackage{amssymb}
\usepackage{graphicx}
\begin{document}

\begin{figure}
    \begin{center}
        \include{strange_graph}
    \end{center}
\end{figure}

\end{document}

the Greek letters rho and zeta do not appear on the axes, and furthermore r has disappeared from the y-axis, leaving "ho".

How do I fix this problem, and what is going on?

(And no, please don't ask me for an image, apparently I don't have enough reputation to upload one.)

回答1:

You must either escape the backslashes, when using double quotes,

set xlabel "$\\zeta$"
set ylabel "$\\rho$"

or use single quotes

set xlabel '$\zeta$'
set ylabel '$\rho$'

来源：https://stackoverflow.com/questions/28964500/math-in-axes-labels-for-gnuplot-epslatex-terminal-not-formatted-correctly