Big forward slash in math

Question

I have an equation in from of

a=VERYBIGSTUFF / VERYBIGSTUFF

And I would like to have a "verybig" forward slash in the middle of them. I don't like \frac mode, as I would like to have them left-to-right, not one above the other. I tried also changing the size of the "/" like \text{\LARGE $/$} but this gives a non centered slash, it goes upwards (as a different typography size would do, of course).

How can I insert that big forward slash?

Answer 1

It is also possible to put the equation into the brackets and then use the \middle/ instead of the regular slash.

So, for example, this equation:

\int \limits_{a}^{b} \frac{x}{y} / \int \limits_c^d \frac{x}{y}

would turn into this one:

\left[ \int \limits_{a}^{b} \frac{x}{y} \middle/ \int \limits_c^d \frac{x}{y} \right]

Or if you do not need any visible brackets, you may use the "fake" brackets instead:

\left. \int \limits_{a}^{b} \frac{x}{y} \middle/ \int \limits_c^d \frac{x}{y} \right.

Answer 2

For example:

\documentclass{article}

\begin{document}
\[
a=\textrm{\Huge VERYBIGSTUFF} \Biggm/ \textrm{\Huge VERYBIGSTUFF} 
\]

or (compare the spacing)

\[
a=\textrm{\Huge VERYBIGSTUFF} \Bigg/ \textrm{\Huge VERYBIGSTUFF} 
\]

In a real situation it would look nicer:

\Huge
\[
 a=\textrm{\Huge VERYBIGSTUFF} \Biggm/ \textrm{\Huge VERYBIGSTUFF} 
\]

or (compare the spacing)

\[
a=\textrm{\Huge VERYBIGSTUFF} \Bigg/ \textrm{\Huge VERYBIGSTUFF} 
\]

\end{document}

Answer 3

If you want a simple one-line solution, I always use just \left. - \right/ pair:

\begin{equation}
    a = \left.VERYBIGSTUFF \right/ VERYBIGSTUFF
\end{equation}

Example:

\begin{equation}
    a = \left.\int \limits_{a}^{b} \frac{x}{y} \right/ \int \limits_c^d \frac{x}{y}
\end{equation}

Output:

Very simple and efficient. Works well unless you have incredibly big stuff like in the answer of Steven B. Segletes

Answer 4

The drawback of this solution is that the line is thickened, but the advantage is that it will work even if the equation gets "really really big".

Here. I vertically auto-stretch a / to make the tall slash of any required height, but add width if necessary so that the overall aspect ratio of the stretched glyph can not exceed 500% (i.e., 5:1).

\documentclass{article}
\usepackage{scalerel}
\def\LargeExpression{\frac{~~\displaystyle\frac{x^2 +2x + 3}{g_x}~~}{\displaystyle\frac{x^3}{y+1}}}
\begin{document}
\[
\stretchleftright[500]{.}{\LargeExpression}{/} 2
\]
\[
A \stretchleftright[500]{/}{\LargeExpression}{.}
\]
\end{document}