I would write my xlabel with Latec character so I used this code
x = -10:0.1:10;
y = [sin(x); cos(x)];
plot(x,y)
xlabel('$\mathbb{x}$','Interpreter','latex')
but I have this warning message
Warning: Error updating Text.
String scalar or character vector must have valid interpreter syntax: $\mathbb{x}$
and the xlabel appear like this https://i.stack.imgur.com/NCI4n.png
please how I can fix this problem.