superscript/subscript in labels not working

2016 2 18
1 个回答
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更新时间：2017 9 5
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1 个投票

I wanted to use superscripts for x or y axis labels by using commands like:
ylabel('e^t')
However, the result is simply e^t, no matter how many times I tried. The '\' function for greek letters does not work either. Can anyone tell me what is wrong with my Matlab?
Thank you, Woonsup

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MHN
MHN 2016-2-18

4 个投票

x= 1:10;
y=2*x;
plot(x,y)
ylabel('e^t')
It works on Matlab R2014b, maybe the version that you are using does not support latex format.

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MHN
MHN 2016-2-18
编辑：MHN 2016-2-18
Try this one (it is an example from Matlab's documentation), if it does not work then the problem is your Matlab version. If it works, then you should change the interpreter to latex for your code.
x = linspace(0,3);
y = x.^2.*sin(x);
plot(x,y)
line([2,2],[0,2^2*sin(2)])
str = '$$ \int_{0}^{2} x^2\sin(x) dx $$';
text(0.25,2.5,str,'Interpreter','latex')
annotation('arrow','X',[0.32,0.5],'Y',[0.6,0.4])
Woonsup Choi
Woonsup Choi 2016-2-19
Can you tell me how to "change the interpreter to latex for your code"? The suggested method (str=...) worked, but it is not exactly what I wanted, because the result looks like an equation. I am using R2015a.
MHN
MHN 2016-2-19
编辑：MHN 2016-2-19
If you are using R2015 I believe the default value is tex. Try this code:
x= 0:0.01:1;
y= exp(x);
plot(x,y)
ylabel('e^x', 'Interpreter','tex')
See http://www.mathworks.com/help/matlab/ref/ylabel.html#inputarg_Interpreter for more detail.

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