How to put hat over a greek symbol express its value in legend of a plot?

I want to write expressions like alpha_0 cap(or hat)=0, alpha_0 cap(or hat)=1 and so on in legend of a plot.

Need to display aplha, with subsscript zero, with a hat, equate to a numerical value.

Kindly help me.

Answer 1

[madhan ravi]

legend(sprintf('$\\hat{\\alpha}(0) = %d$',2),'Interpreter','latex')
                                       %  ^----- numeric value

[dayu]

Sir,

I copy pasted the code. But it is getting printed as $\hat{\alpha}(0) = 2$'. What shall I do?

[madhan ravi]

Code:

plot(1:10)
h=legend(sprintf('$\\hat{\\alpha}(0) = %d$',1),'Interpreter','latex');
h.FontSize=20

Plot produced:

[dayu]

Sir following error displayed in my matlab when I tried your code:

Warning: Ignoring extra legend entries.

> In legend at 290

In plotexample at 4

Warning: Struct field assignment overwrites a value with class "double". See MATLAB R14SP2 Release Notes, Assigning Nonstructure Variables As

Structures Displays Warning, for details.

> In plotexample at 5

h =

FontSize: 20

Warning: Unable to interpret TeX string "$\hat{\alpha}(0) = 1$"

What shall I do?

[dayu]

Also I need zero as subscript

[madhan ravi]

Maybe it’s because of version: Try:

z= ['$\hat{\alpha}(0) =',num2str(2)','$'];
legend(z,'Interpreter','latex')

[madhan ravi]

If you mean subscript: Then use ^{0} - above or _{0} - below instead of (0)

Answer 2

[KSSV]

Read here: https://in.mathworks.com/help/matlab/creating_plots/greek-letters-and-special-characters-in-graph-text.html