Text Formatting ⇒ Double underlined Letter

[mayankmi]

Hey LaTeX users,

just a short question. How to put two lines below a letter as shown in the attached image?

I have written this code for this.

Code: Select all

\documentclass[12pt]{article}

\begin{document}
$B_L$
\end{document}

I don't know how to put double underline below "B".

[localghost]

Either use two nested \underline commands or take a look at the ulem package.


Thorsten