Problems with a down arrow displaying in a plot

Hello Community,

I have recently re-run a bit of code to display a plot, and there is an error that has occurred without my changing the code. In the plot text, there was a 'down arrow' showing, but now, the syntax '\downarrow' appears in its place. Ive looked on Mathworks and I think there is a problem associated with a service pack (though I may be wrong on this!).

I have also tried to set LateX interpreter to 'on', code below:

% Turn on LateX Interpreter
set(0,'Interpreter','latex');

then run the following text command:

% Create text
text('Parent',subplot2,'String',{'\downarrow 1(D)'},...
    'Position',[35.2026613558799 5703.42205323194 0]);

but I still get the following error:

Warning: Error updating Text.

   Character vector must have valid interpreter syntax:
  \downarrow 1(D)

Could any kindly soul advise on how I can workaround this please?

Regards,

10B.

Answer 1

[KL]

Like this?

text(35.02,5703.42,'$\downarrow 1(D)$','Interpreter','latex')

[10B]

KL,

Many thanks - that worked perfectly! Could I ask if you know exactly what the '$' operator is doing to make this work? Just so I can understand a little better for next time...

10B.

[KL]

From what I understand, it's just part of the syntax so Matlab knows what's between dollar symbols should be converted into latex specs.