How to make exponents superscripted on plots instead of with e notation?

I am displaying a variable in the title of a plot but I would like it to show with the exponent part superscripted instead of in the e notation. For example:

n0=10^25
plot(...)
title('n0')

This displays n0 as 1.0e+25 in the title instead of the 25 superscripted. Is there a way to do this in MATLAB without having to manually type a new string into the title every time?

I don't want to have to do this:

title('10^{25}')

Thanks for any help.

Answer 1

[zero1342]

ANSWER:

exponent = floor(log10(n0));
title(sprintf('n_{0} = %.2f x 10^{%d}',n0/10^exponent,exponent))

Answer 2

[Muthu Annamalai]

Whereas some options may exist, a simple work around does the trick following your hint;

var2exp = @( varname, var ) [regexprep(sprintf('%s=%g',varname,var),'[e|E]','^{'),'}']
title(var2exp('n0',n0))

this is admittedly kludgy, but seems to suit your needs.

[zero1342]

That's close but it doesn't display the 10 in the title, only a superscripted 25 above a 1.

Instead I've done this:

exponent = floor(log10(n0));
title(sprintf('n_{0} = %.2f x 10^{%d}',n0/10^exponent,exponent))

This code takes the exponent off the variable then reattaches it in the title.

[Muthu Annamalai]

I'm not so sure.

Whereas my code will work for -ve numbers, your code may fail, and badly at that with some complex output for log10 of a 0 or -ve number.