8

I am looking to create a vertical equal sign that might function similarly to an underbrace. I often use this symbol when taking notes on paper.

 (x+z) + (y+d) = 10
  ||      || 
  5       5

The alignment is not entirely perfect in this example but I believe the idea comes across.

  • 4
    You could also use \underbrace{..}_{{}=5}. – Werner Mar 2 '13 at 9:46
  • @Werner Yes that's functional but I'd personally prefer it with no braces and a rotated equals sign. – jaynp Mar 2 '13 at 9:49
22

Here is another way of achieving this. You use the command \equalto{equation}{value}.

\documentclass{scrartcl}  

\usepackage{mathtools}

\newcommand{\verteq}{\rotatebox{90}{$\,=$}}
\newcommand{\equalto}[2]{\underset{\scriptstyle\overset{\mkern4mu\verteq}{#2}}{#1}}

\begin{document}

\[
    \equalto{(x + z)}{5} + \equalto{(y + d)}{5} = 10
\]

\end{document}

And this is the output:

enter image description here

As you can see, I added some spacing to the vertical equal manually (and some horizontal spacing to the \equalto command), of course, you can tweak both to get the exact output you want.

3

thanks to detexify, I just found that if you are using amsmath,amssymb then you have access to \shortparallel

\usepackage{amsmath}
\usepackage{amssymb}
\def\stackbelow#1#2{\underset{\displaystyle\overset{\displaystyle\shortparallel}{#2}}{#1}}

$$\stackbelow{(x+z)}{5}+\stackbelow{(y+d)}{5} = 10.$$

The result, obtained thanks to quicklatex:

solution

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