I want to type this character as a symbol for energy:

enter image description here

But when I type capital u, it is shown as:

enter image description here

Please help me find the solution. Thanks

  • 3
    Can you please add an MWE? Perhaps you have loaded a font package that changes the normal font of the document. Try with: \documentclass{article}\begin{document}$U$\end{document} and see if that works. – manooooh Dec 12 '18 at 1:30
  • 1
    You have selected a different font than the default, hence you get a different capital U. – Henri Menke Dec 12 '18 at 1:41

If you want U from the default Computer Modern font you can just define it using another name. I used \energy because that is what you want to use it for.


% Change the main math font

% Get Computer Modern ``U'' back under different name


$U \energy$


enter image description here

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