Upper script Variable in the text

Hi,

I have a fit equation like

a*x^b

I am obtaining the coefficients like this

COEFF = coeffvalues(fittedmodel) a=COEFF(1) b=COEFF(2)

And try to write the equation on plot window.But the upper script (^b section) is always failing. Only the minus sign goes to uppersciprt always

Here is the code

txt = ['y=', num2str(a) ,'*x','^', num2str(b)]

text(50,999,txt);

Any Help???

Answer 1

[Stephen23]

Put curly braces around the part you want to be superscript:

^{...}

The TeX/LaTeX languages use curly braces to group things together. You can learn more here:

https://www.mathworks.com/help/matlab/creating_plots/text-with-mathematical-expressions-using-latex.html

Note that sprintf would be neater and more efficient than using concatenation, e.g.:

txt = sprintf('y=%g*x^{%g}',a,b)

[Orkun OZENER]

Thank you indeed. BR Orkun