问题描述
在GNU Octave中，我想将绘图的tic设置为分数.因此，我想写的是"\ frac 1 128"，而不是0.0078125(等于1/128).
In GNU Octave I would like to set the tics of a plot as fractions. So instead of 0.0078125 (which is equal to 1/128) I would like to write "\frac 1 128".
我已经尝试过
set(gca,'xTickLabel',{'\frac 1 128'});
但是它不起作用.文本'\ frac 1128'不解释为LaTeX代码.
but it does not work. The text '\frac 1 128' is not interpreted as LaTeX code.
推荐答案
latex尚未在GNU Octave中实现.您可以将TeX的子集用于希腊符号等等.
latex isn't implemented yet in GNU Octave. You can use a subset of TeX for Greek symbols and so on.
如果只想在生成的打印物中使用LaTex(用于发布)，则可以使用设备epslatexstandalone，然后使用latex进行渲染:
If you just want to have LaTex in the generated print (for publication), you can use for example the device epslatexstandalone and render it afterwards with latex:
close all
graphics_toolkit fltk
title ("for thyme:")
t = linspace (0, 2 * pi, 100);
plot (t, sin (t))
set (gca, "xtick", [0 0.5 1 1.5 2] * pi)
set (gca, "xticklabel", {'$0$', '$\frac{\pi}{2}$', '$\pi$', '$\frac{3\pi}{2}$', '$2\pi$'})
grid on
set(gca, "fontsize", 20);
print -depslatexstandalone thyme
## process generated files with pdflatex
system ("latex thyme.tex");
## dvi to ps
system ("dvips thyme.dvi");
## convert to png for stackoverflow
system ("gs -dNOPAUSE -dBATCH -dSAFER -sDEVICE=png16m -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r100x100 -dEPSCrop -sOutputFile=thyme.png thyme.ps")
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