Line
$| x |$
| x |
$\vert x \vert$
\vert x \vert
It is derived from vertical line.
$\{ x \mid x \in A \}$
\{ x \mid x \in A \}
By using the "\mid" command, you can create a vertical line that has spaces before and after it.
$\Vert x \Vert$
\Vert x \Vert
By using the uppercase version of the "\vert" command as "\Vert", you can create a double vertical line in your document.
$AB \parallel CD$
AB \parallel CD
By using the "\parallel" command, you can create a double vertical line that represents parallelism.
$\overline{ A }$
\overline{ A }
$\bar{ A }$
\bar{ A }
$\underline{ A }$
\underline{ A }
$/$
/
The slash symbol ("/") is used as is, without any additional commands or modifications.
$\backslash$
\backslash
In MathJax, the backslash "\" has a special meaning, so if you want to display it as a symbol, you need to write "\backslash".
$\diagdown$
\diagdown
It is a diagonal line that slopes downwards on the right side.
$\diagup$
\diagup
It is a diagonal line that slopes upwards on the right side.
$\cancel{a}$
\cancel{a}
By using the "cancel", you can create a diagonal line to cancel out specific expressions.
$\bcancel{a}$
\bcancel{a}
The command "\bcancel" is similar to "\cancel," but it produces a diagonal line with the opposite direction.
$\xcancel{a}$
\xcancel{a}
The command "\xcancel" creates a cross (x) symbol over the content. It can be seen as a combination of the "\cancel" and "\bcancel".
$\cancelto{A}{a}$
\cancelto{A}{a}
The combination of a diagonal cancel line and an arrow.
$\begin{eqnarray} \frac{\cancel{2}}{\cancel{6}}=\frac{1}{3} \end{eqnarray}$
\begin{eqnarray}
\frac{\cancel{2}}{\cancel{6}}=\frac{1}{3}
\end{eqnarray}
By using the "cancel", you can create a diagonal line to cancel out specific expressions.
$\begin{eqnarray} \frac{1}{\cancel{3}} \times \frac{\cancelto{2}{6}}{5} \end{eqnarray}$
\begin{eqnarray}
\frac{1}{\cancel{3}} \times \frac{\cancelto{2}{6}}{5}
\end{eqnarray}
The combination of a diagonal cancel line and an arrow.
$\llcorner$
\llcorner
The symbol "llcorner" represents the lower left corner.
$\lrcorner$
\lrcorner
The symbol "lrcorner" represents the lower right corner.
$\ulcorner$
\ulcorner
The symbol "ulcorner" represents the up left corner.
$\urcorner$
\urcorner
The symbol "urcorner" represents the up right corner.