Math & Science ⇒ Continuum mechanics book, need help with symbol

[ndn_ninja15]

So I'm typesetting some notes my professor has gathered and she likes to use a symbol that consists of a number with a circle and an equals sign stacked vertically. I've attached a screen shot to show you what I'm talking about. Is there any way that this can be typed in Latex? I figured it is something a bit advanced and I have no idea how to create it. Thanks to whoever can figure it out.

[frabjous]

If all the numbers are between 1-10 you might use some dingbats from the pifont package along with the \overset command (from amsmath):

Code: Select all

\documentclass{article}
\usepackage{pifont}
\usepackage{amsmath}
\newcommand{\oneequals}{\mathrel{\overset{\text{\ding{192}}}{=}}}
\newcommand{\twoequals}{\mathrel{\overset{\text{\ding{193}}}{=}}}
\newcommand{\threeequals}{\mathrel{\overset{\text{\ding{194}}}{=}}}
\newcommand{\fourequals}{\mathrel{\overset{\text{\ding{195}}}{=}}}
\newcommand{\fiveequals}{\mathrel{\overset{\text{\ding{196}}}{=}}}
\newcommand{\sixequals}{\mathrel{\overset{\text{\ding{197}}}{=}}}
\newcommand{\sevenequals}{\mathrel{\overset{\text{\ding{198}}}{=}}}
\newcommand{\eightequals}{\mathrel{\overset{\text{\ding{199}}}{=}}}
\newcommand{\nineequals}{\mathrel{\overset{\text{\ding{200}}}{=}}}
\newcommand{\tenequals}{\mathrel{\overset{\text{\ding{201}}}{=}}}
\begin{document}
$x \oneequals U_i V_j W_k$

$y \twoequals z$

$z \tenequals a + b$
\end{document}

numequals.png (4.53 KiB) Viewed 3003 times

It gets a little tricker if you need numbers not between 1 and 10, but perhaps searching the forums for circled numbers (which will show other methods besides the pifont ones) combined with this method for \overset will show you how.

[ndn_ninja15]

Aha, Thank you very much sir! We're only using 1 through 4 so this will work perfectly.

[localghost]

Now that the problem is solved, please be so kind and mark the topic (not the last post) accordingly as clearly written in the Board Rules (to be read before posting). Please keep that in mind for the future so that further reminders will not be necessary.


Best regards and welcome to the board
Thorsten