Math & Science ⇒ Equations in Fbox

[dmuthu_cse]

Hello friends,

I am using book class, with amsmath package to write some of my equations.

And also using fbox, for creating box for my equations.

But, when I use fbox for equations, compiler is saying that $ is mandatory.

Adding "$" to my equation makes it slanting.But I dont want that..

The resulting equation in fbox, should be normal as other text.. Please do help me in this issue..
I have added the code below..

Code: Select all

\documentclass[11pt,a4paper,english]{book}
\usepackage{babel,amsmath}
\begin{document}
\begin{center}
    \fbox{ $ \displaystyle N = \frac{A \times E}{L_{n} \times CU \times LLF}$}
\end{center}
\end{document}

Thanks in advance..

Regards,
Muthu.

[Stefan Kottwitz]

Hi Muthu,

when I use fbox for equations, compiler is saying that $ is mandatory.

the math mode is required. You could use \boxed inside an equation environment:

Code: Select all

\begin{equation*}
    \boxed{N = \frac{A \times E}{L_{n} \times CU \times LLF}}
\end{equation*}

Adding "$" to my equation makes it slanting.But I dont want that..
The resulting equation in fbox, should be normal as other text..

Slanted or italic math symbols are commonly used to distinguish it from normal text. If you really want to change that, you could use for instance \mathrm:

Code: Select all

\begin{equation*}
    \boxed{\mathrm{N = \frac{A \times E}{L_{n} \times CU \times LLF}}}
\end{equation*}

Stefan

[dmuthu_cse]

Dear Stefan,

Thanks for your quick response..

It's correctly solving my problem.

Regards,
Muthu

[localghost]

Just for the record. In case you want to emphasize whole equation systems, take a look at the empheq package.


Best regards
Thorsten

[dmuthu_cse]

Thank you Thorsten..

It's nice to hear from you..

Regards,
Muthu