TeX (LaTeX math mode) symbols in legends and labels in MATLAB figures

Question

Shah ，2011-11-22

5
链接

Direct link to this question

https://ww2.mathworks.cn/matlabcentral/answers/21984-tex-latex-math-mode-symbols-in-legends-and-labels-in-matlab-figures

编辑： Mario ，2023-4-17

I am plotting some data which includes estimates of some parameters. I want to describe the estimates by using \hat on the parameter symbols. This I have to do in legends and axis labels fields. I could not fix this matter despite some experiments using information from MATLAB help. Any idea, please to fix this problem.

I really appreciate help on this matter which will improve the look of my presentation.

Shah

0 个评论
显示 -1更早的评论隐藏 -1更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Matthew Simoneau 2014-5-30

23
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/21984-tex-latex-math-mode-symbols-in-legends-and-labels-in-matlab-figures#answer_138890

编辑：MathWorks Support Team 2021-4-28

By default, MATLAB supports a subset of TeX markup. For a list of supported symbols, see the documentation .

For more symbols, you can use LaTeX markup by setting the Interpreter property to 'latex'. Use dollar symbols around the text. For example:

title('$\hat{\psi}$','Interpreter','latex')

If you are using the legend function in R2018a or earlier, you must specify the labels as a cell array to distinguish the labels from the name-value pairs. In R2018b and later, the cell array is not needed.

plot(1:10)
legend({'$\hat{\psi}$'},'Interpreter','latex') % R2018a and earlier
legend('$\hat{\psi}$','Interpreter','latex') % R2018b and later

When you use LaTeX markup, the displayed text uses the default LaTeX font style. The FontName, FontWeight, and FontAngle properties no longer have an effect. To change the font style, use LaTeX markup instead.

For more information on using LaTeX in plot titles, labels, and legends, refer to the following example:https://www.mathworks.com/help/matlab/creating_plots/greek-letters-and-special-characters-in-graph-text.html#mw_421aadf2-3104-41f5-ae7e-57bf5f7cdde3

3 个评论
显示 2更早的评论隐藏 2更早的评论

Bokang Zhou 2021-8-14

@Matthew Simoneau

Thank you for your answer, but how do I use two different interpreters in the same label line?

For example:

If I use 'latex', I get the desired symbol \varphi but can't get the font of words in Time New Roman.

xlabel('Power factor angle, $\varphi$','Interpreter','latex')

If I use 'tex', I get the desired font of words in Time New Roman, but can't get the symbol \varphi since 'tex' does not support \varphi.

xlabel('Power factor angle, \phi','Interpreter','tex')

So I wonder if there is a way to have normal font of words and 'latex' font of symbol in one label line.

请先登录，再进行评论。

Answer 2

Mikhail Smirnov 2017-2-10

11
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/21984-tex-latex-math-mode-symbols-in-legends-and-labels-in-matlab-figures#answer_254204

You can do like this

plot(1:10);
leg1 = legend('$\bar{x}$','$\tilde{x}$','$\hat{x}$');
set(leg1,'Interpreter','latex');
set(leg1,'FontSize',17);

works well

4 个评论
显示 3更早的评论隐藏 3更早的评论

Mario 2023-4-17

编辑：Mario 2023-4-17

I figured it out:

lgd = legend('on','off', '$\overline{v}_{on}$', '$\overline{v}_{off}$')

But now my font is not Calibri anymore. it's rather looking like Times New Roman or sth.

set(lgd, 'interpreter', 'latex', 'FontName', 'Calibri')

won't help :(

is there a problem with Calibri + Latex?

请先登录，再进行评论。

Answer 3

Frederik van der Walt 2012-4-4

3
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/21984-tex-latex-math-mode-symbols-in-legends-and-labels-in-matlab-figures#answer_43237

编辑：KSSV 2022-5-26

l= legend(['$\hat{\psi}$']);
set(l,'Interpreter','Latex');

0 个评论
显示 -1更早的评论隐藏 -1更早的评论

请先登录，再进行评论。

Answer 4

Steven 2011-11-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/21984-tex-latex-math-mode-symbols-in-legends-and-labels-in-matlab-figures#answer_28933

Try with Latex interpreter, something like

title(['$ latex $'],'interpreter','latex')

1 个评论
显示无隐藏无

Shah 2011-11-22

Thanks Steven but its not working here. I am using MATLAB 7.9.0.

I wrote legend(['$\hat{\psi}$'],'interpreter','latex') but got a warning: Unable to interpret TeX string '$\hat{\psi}$'interpreterlatex'. Same appear in the legend field.

请先登录，再进行评论。

Answer 5

Shah 2011-11-23

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/21984-tex-latex-math-mode-symbols-in-legends-and-labels-in-matlab-figures#answer_29018

......... Its done! Actually, the default interpreter in MATLAB for legend is 'tex', I guess. It is not changed from the code line. What I had to do was to right click on the legend in the figure window and then changed the 'interpreter' from 'tex' to 'latex'. This action changed the latex statement in the legend field to Math mode.

Cheers Shah