How to Insert a Tilde Symbol (~) in LaTeX
You can write a tilde (sometimes called “twiddle”) in a LaTeX document by using \(\sim \)
or $\sim$
(sim stands for similar).
As an alternative you can use \texttildelow
from thetextcomp package.
\documentclass{article}
\begin{document}
This is a Text containing a tilde symbol $\sim$. It is done using an inline equation.
\end{document}

If you want to write a letter with a tilde on top of the letter, you can write $\tilde{x}$
.
In this example the tilde will be displayed above the “x”.
If you want more then one letter below the tilde you can use $\widetilde{xyz}$
.

Inserting a Tilde Symbol Using MonsterWriter
To write a tilde in MonsterWriter simply place the caret into the text where you need to insert the tilde.
Press cmd+i
on MacOS or ctrl+i
if you run on Windows. Click on the small square root symbol
of the context menu. Now paste \sim
or \tilde{x}
or \widetilde{xyz}
into the text field
for equations.

Similar Symbols
Approximately Equal in LaTeX
There is an extra command in LaTeX for the Approximately Equal sign which is represented by a tilded equal sign.
To make use of it write $a \approx b$
to say a is approximately equal b.