How to put a hat symbol in the title of a legend ?

I tried to write this as a part of my code, after setting the visible display names for the legend:

legend1 = legend('show');
title(legend1,'$\hat{x}$ with # Coeffs','Interpreter','latex');
set(legend1,'Location','northeast');

but I get

 '$\hat{x}$ with # Coeffs' 

in the title, and not the sign of the hat on x.

Is there a way to solve this ?

Answer 1

[Walter Roberson]

title(legend1,'$\hat{x}$ with \# Coeffs','Interpreter','latex');