Is there maximum number of characters of the figure title latex interpreter string?

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FastCar 2020-7-11

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评论： Walter Roberson 2020-7-13

采纳的回答： madhan ravi

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Dear all,

I would like to write a multiline title using the latex interpreter.

From this post, https://it.mathworks.com/matlabcentral/answers/15680-maximum-number-of-characters-of-the-latex-interpreter#:~:text=there%20is%20a%20maximum%20of,about%2010%20characters%20per%20line).

I understand there is a limit of 1200 characters (minus roughly 10 characters for each line breaking).

I tried the following code but the interpreter fails.

title({[sprintf('$\\psi$ = %.0f$^\\circ$, $\\theta$ = %.0f$^\\circ$', rotationAngle,rad2deg(thetaIncidence)) newline ...
    sprintf('$n_{Exp}$=%.2E, $vc_{Exp}$=%.2E', beta(1), beta(2)) sprintf('$\\sigma_n$=%.2E, $\\sigma_v_c$=%.2E', errBeta(1), errBeta(2))]},'Interpreter','latex')

Any idea?

Many thanks in advance

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dpb 2020-7-11

Simplify, simplify, simplify!!!! Break you string up into smaller pieces, debug each part to make sure of syntax...the LaTeX stuff is very fragile to proper syntax and very difficult to read easily. That there's no indication of which part fails doesn't help but is why simply have to work on the pieces from left to right, getting each working before going on to the next...

FastCar 2020-7-11

I tried to break the title in 3 pieces and each one works fine. The problem is when I put together the pieces.

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madhan ravi 2020-7-12

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Painful but manageable ;)

 first = sprintf('$$\\psi = %.0f^{\\circ}$$', rotationAngle);
 second = sprintf('$$\\theta = %.0f^{\\circ}$$', rad2deg(thetaIncidence));
 third =  sprintf('$$n_{Exp} = %.2E$$', beta(1) );
 fourth = sprintf('$$vc_{Exp} = %.2E$$', beta(2));
 fifth = sprintf('$$\\sigma_n = %.2E$$', errBeta(1));
 sixth = sprintf('$$\\sigma_{v_{c}} = %.2E$$', errBeta(2));
 title({first, second,third,fourth,fifth,sixth},'Interpreter','latex')

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madhan ravi 2020-7-13

Thanks Stephen that makes things clearer!

Walter Roberson 2020-7-13

I have a difficult time finding documentation for TeX itself that is not LaTeX; even the documents I find that say they are talking about TeX specifically tend to be contaminated by LaTeX constructs.

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dpb 2020-7-11

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First, you must pass a char() string, not cellstr. You've got too many $ signs for pieces, but a start at what outlined above using

tstr=[sprintf('$\\psi = %.0f^\\circ$', rotationAngle)];
title(tstr)

does work...just keep adding pieces one at a time.

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FastCar 2020-7-12

编辑：FastCar 2020-7-12

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Dear dpb, I tried each one of the sprint strings (and the first two together) and they work fine alone. I tried char() and I still get the same wrong text.

Now I tried

text= [sprintf('$\\psi$ = %.0f$^\\circ$, $\\theta$ = %.0f$^\\circ$', rotationAngle,rad2deg(thetaIncidence)) newline ...
sprintf('$n_{Exp}$=%.2E, $vc_{Exp}$=%.2E', beta(1), beta(2)) sprintf('$\\sigma_n$=%.2E, $\\sigma_v_c$=%.2E', errBeta(1), errBeta(2))];
title(text,'Interpreter','latex')

and it still does not work fine, but I do not get anymore the warning on the interpreter.

dpb 2020-7-12

As said, just piece together pieces one at a time. If you break somewhere along the line, that's the portion with a syntax error to fix (or you're trying to do something the MATLAB LaTeX implementation doesn't support).

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