I'm new to LaTeX, and I'm having an issue with using \framebox inside an equation (denoted with $$ signs at the beginning and the end).
The text that I'm trying to box is the following:
1.5 \times 10^{- 5} \; Pa
However, once I put a \framebox around it, like so:
\framebox{1.5 \times 10^{- 5} \; Pa}
I get the following error:
./assignment1.tex:85: Missing $ inserted.
...where 85 points to the line where I put in the \framebox. Any ideas why this is happening?
boxed will not span an equation if it encloses an alignment point i.e., & . In such cases you can use Aboxed from mathtools. See the example below for illustration. Further, to typeset units, better use siunitx.
\documentclass{article}
\usepackage{mathtools}
\usepackage{siunitx}
\begin{document}
\framebox{$1.5 \times 10^{- 5}\si{\pascal}$}
\begin{align}
&\boxed{1.5 \times 10^{- 5}\si{\pascal}}\\
\Aboxed{\text{Pressure} &=1.5 \times 10^{- 5}\si{\pascal}}
\end{align}
\end{document}
A useful read will be this Q and its A
\boxed will not span an entire equation" and that is not exactly true. \boxed will span an entire equation unless the box should cross an alignment point.
– Gonzalo Medina
Jan 29 '14 at 02:51
Package amsmath provides a command, namely \boxed, to generate boxed math.
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\[\boxed{E = mc^2}\]
$\boxed{E =mc^2}$
\end{document}
BTW, do NOT use $$, see here for details.
\framebox, the outer math environment is lost. You must place the argument itself inside math delimiters (single$) – Steven B. Segletes Jan 29 '14 at 02:05amsmathand use\boxed, as the following example shows:\[ \boxed{1.5 \times 10^{- 5} \; Pa} \]– Gonzalo Medina Jan 29 '14 at 02:18