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

greek letterslegendMATLABplotsymbols

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.

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

Here is an example:

text('Interpreter','latex','String','$$\hat{\beta}$$','Position',[.5 .5],'FontSize',16)

or for xlabels:

xlabel('$$\hat{\alpha}$$','Interpreter','latex','FontSize',16)

a) frac{\lambda}{\delta}

b) \hat{\tau_0}

c) \frac{\hat{\tau_0}}{\delta}

Are these what you want?