Using fbox and parbox
The formula will be framed. Must declare the width of the frame.\fbox {
\parbox{5cm} {
[
\oint\limits_C V,d\tau =
\oint\limits_\Sigma \nabla \times V,d\sigma
]
}
}
\parbox{5cm} {
[
\oint\limits_C V,d\tau =
\oint\limits_\Sigma \nabla \times V,d\sigma
]
}
}
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEifkQLy425vHMygy2QNvWlDDnEuKi2ZIGgqJLRBzrMchgYdYKVJ6PfsBUsqNyAAarSH3c5qJdmKwzHiD4JWeA36tZQ-iVDuS9a7RAPH9jSeHJAvuEY5_ZdAAVAijTguAVag3PxOVYlz2ogb/s1600/fbox-parbox.png)
Using fbox and minipage
The formula will be framed. Must declare the width of the frame.\fbox {
\begin{minipage}[position]{5cm}
[
\oint\limits_C V,d\tau =
\oint\limits_\Sigma \nabla \times V,d\sigma
]
\end{minipage}
}
\begin{minipage}[position]{5cm}
[
\oint\limits_C V,d\tau =
\oint\limits_\Sigma \nabla \times V,d\sigma
]
\end{minipage}
}
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgypNrNg9JPSRnYBU_TgpDkr_RhRwaTi1YQkaNIXPJNUBH-G2CQxZnBIYWpNioGKLj7UN1zozUrw8yGElj2zU7zG14Vy1qNoTkfdWjmvWiDzLKAYK-4uiLhtAOlKV1vQkdNtmEwubtFWyJv/s320/fbox-minipage.png)
Using equation environment and fbox
The formula will be centred, framed and numbered.\begin{equation}
\fbox {
$ \displaystyle \oint\limits_C V,d\tau =
\oint\limits_\Sigma \nabla \times V,d\sigma $
}
\end{equation}
\fbox {
$ \displaystyle \oint\limits_C V,d\tau =
\oint\limits_\Sigma \nabla \times V,d\sigma $
}
\end{equation}
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgry-UBxycdCwPS7BdpXAW3uiY80IiJyaDvNj7_uqUfueE2x-AzI8Fw5zJ18VEYxZT-Gmw4E0sDqWAihuTTnOgdesgYzU8yDArXdCo8hhFgvFZLSry_P2dmj8DM7UiI9Q-uDY5YvASnhhZI/s1600/equation-fbox.png)
Using displaymath enviroment and fbox
The formula will be centred, framed and unnumbered.\begin{displaymath}
\fbox {
$ \displaystyle \oint\limits_C V,d\tau =
\oint\limits_\Sigma \nabla \times V,d\sigma $
}
\end{displaymath}
\fbox {
$ \displaystyle \oint\limits_C V,d\tau =
\oint\limits_\Sigma \nabla \times V,d\sigma $
}
\end{displaymath}
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOwEywPwpHaomXpPN8HXgrYpZFWWwnNb9qYKZ8viKLC-mF3wH2A5Ez1PYWf_ZtIuN9HO3kNpskQKpqwRD1BeuWBT7P1qWk0cq4u0VQbejFF0tUQlfls0tgm-G2Ou4J9NuSoj3SePdp56pS/s1600/displaymath-fbox.png)