Display Interpreted Latex string outside a plot

Hi there,

I want to show in my output (not in my plots) the handwritten format of my expression. I have the symbolic toolbox.

% No problem in plots, simple example

x=linspace(0*deg,360*deg,360);  % deg is constant in my installation

f='sqrt(abs(sin(x.^2)))'; ff = eval(f);

p=plot(x,ff);

title(['Title  ' '$' latex(str2sym(f)) '$'] , 'Interpreter',  'latex');

Now suppose I don't need a plot of any kind and I want to check if I made a mistake in a long expression or equation.

I'd like to show the hand written format of my expression

Refering to the little code over

If I type ['$' latex(str2sym(f)) '$']

I will get the Latex representation ans = '$\sqrt{\left|\sin\left(x^2\right)\right|}$'

Now I want to do this something like this

disp(['$' latex(str2sym(f)) '$'] , 'Interpreter',  'latex');

and get

Can I do something like this ? Not with disp(...) for sure !

[Rafael Hernandez-Walls]

title({'$\sqrt(abs(sin(x.^2)))$'},'Interpreter','latex')

[Pierre]

No.

Assume there is no plot, I cannot use title alone.

I forgot to say that I use the Live Editor and common sense tells me that the output must be a text region

So I rewrite the code, it should be as simple as that with no plot !

clf

x=linspace(0*deg,360*deg,300);

f='sqrt(abs(sin(x.^2)))'; ff = eval(f);

SomeCallingFunctionOrSomething(['$' latex(str2sym(f)) '$'] , 'Interpreter',  'latex');

And it should add or modify a text region with

Of course I can do it manually just take \sqrt{\left|\sin\left(x^2\right)\right|} then Insert LaTex Equation and Paste and it will add my text region with the correct output but I want to do it programmatically.

[Bhupendra Kumar]

Wait for this thing to happen.

Answer 1

[madhan ravi]

sympref('TypesetOutput','default')
f = str2sym('sqrt(abs(sin(x.^2)))') % gives the desired result in livescript

[Pierre]

PERFECT !

clf

x=linspace(0*deg,360*deg,300);

f='sqrt(abs(sin(x.^2)))'; ff = eval(f);

disp(str2sym(f));

So simple, sometimes we're almost ashamed to have asked such a simple question but I am sure some people will add it to check mistakes in there big equations.

[madhan ravi]

You don’t have to be ashamed of asking a question. By the way please don’t use eval() it’s completely unnecessary.