I want to use the # symbol in Latex equations.
I already tried \#, but it is not working: When the # symbol appears in an equation, then the rest becomes a $ sign instead of #.
Here is my code:
({12#-3-4\div 5#3\%})
[Tex/LaTex] Using the # symbol in equations
math-modesymbols
Related Solutions
The amsmath package provides the \overset and \underset macros that can be used to place one symbol above or below another. If you want text above and below, you could use \DeclareMathOperator* (also from amsmath).
\documentclass{minimal}
\usepackage{amsmath}
\DeclareMathOperator*{\eq}{=}
\begin{document}
\begin{equation*}
\underset{b}{=} \quad \eq^a_b
\end{equation*}
\end{document}
There shouldn't be any problems using this in amsmath environments such as align.
\begin{align*}
A &\eq^b_a B \\
&\eq^b_a C
\end{align*}
However, if you use it in the middle column of an eqnarray or eqnarray* (which are generally considered to be obsolete), then you will need \displaystyle before \eq.
All of the above applies to egreg's suggestion of defining \eq via
\newcommand{\eq}[2]{\mathrel{\operatorname*{=}_#1^#2}}
which seems to improve the spacing (and may be better in other ways as well).
You can load only the \mathbb alphabet from fourier:
\DeclareFontFamily{U}{futm}{}
\DeclareFontShape{U}{futm}{m}{n}{
<-> fourier-bb % changed from .92 to 1
}{}
\DeclareMathAlphabet{\mathbb}{U}{futm}{m}{n}
Note that I've also changed the magnification from .92 to 1 to match iwona sizes.
MWE:
\documentclass{article}
\usepackage[math]{iwona}
\DeclareFontFamily{U}{futm}{}
\DeclareFontShape{U}{futm}{m}{n}{
<-> fourier-bb % changed from .92 to 1
}{}
\DeclareMathAlphabet{\mathbb}{U}{futm}{m}{n}
\begin{document}
$A(x)=B(x),\quad x\in\mathbb{R}$
\end{document}
Output:
Best Answer
In LaTeX
# $ % & ~ _ ^ \ { }are treated as reserved characters. If we need to print these characters, we must add backslash before them. This works for(not for
^,~and\).For instance,
%(percent symbol) is used to comment any content in a document or in a template. To print percent symbol we should type\%For your problem the solution is to type
\#.