Underbracket with long label

Question

I'm trying to do the same thing as the photo below

But the result that I get is pretty annoying (as you can see)

$P(E|F) = \frac{P(E\cap F)}{P(F)} = \frac{|E\cap F|}{|\Omega|}\cdot \frac{|\Omega|}{|F|} = \underbrace{\frac{|E\cap F|}{|F|}}_{\text{"casi favorevoli su casi possibili" su uno SP ridotto. Condizionare riduce lo spazio degli esiti possibili}} = \frac{3}{5}$

So my question is this: is there any way i can "wrap" the text below the bracket into something at least readable in a single row? Thanks in advance

You can use \parbox{width}{text} but I'd probably just use (*) and then explain (*) in the text below the equation. Adding massive amounts of text like this is not really a good idea. — daleif, Mar 15 '21 at 15:55

Bernard · Accepted Answer · 2021-03-15T16:29:18.673

You can nest the label in a \parbox of a sensible size and use the clapcommand from mathtools. Additionally, you might type the label in footnotesize.

\documentclass[12pt]{article}
\usepackage[italian]{babel} 
\usepackage{mathtools}
\begin{document}
[ P(E\mid F) = \frac{P(E\cap F)}{P(F)} = \frac{|E\cap F|}{|\Omega|}\cdot \frac{|\Omega|}{|F|} = \underbrace{\frac{|E\cap F|}{|F|}}_{\clap{\parbox{6.5cm}{"casi favorevoli su casi possibili" su uno SP ridotto. Condizionare riduce lo spazio degli esiti possibili}}} = \frac{3}{5} ]
\end{document}

Underbracket with long label

1 Answers1