Symbol for cube

Question

I've searched the Internet, but got nothing. In LaTeX, we can use \square for square, but how can we get a cube, I want to use it in an equation. Here is the picture:

example of equation with cube

You can add a link to the image, then someone with enough rep can add the ! in front of it to make it an image. I think it would help to see an example. — Roelof Spijker, Jan 09 '12 at 15:28
See if the answer to this question can be adapted to your liking: http://tex.stackexchange.com/questions/38757/looking-for-symbol-shield — Psirus, Jan 09 '12 at 15:31
In case of confusion, check The conprehensive LaTeX Symbol List — percusse, Jan 09 '12 at 15:33
TikZ'ing it: \tikz\draw (0,0,0) rectangle (1,1,0) (0,1,0) -- (0,1,-1) -- (1,1,-1) --(1,1,0) (1,0,0) -- (1,0,-1) -- (1,1,-1); — Roelof Spijker, Jan 09 '12 at 15:36
Out of curiosity: where did you see this explicit notation for a cube ? — Frédéric Grosshans, Sep 24 '19 at 14:04
Answering my own comment: The font used (Euler) led me to the book by Graham, Knuth and Patashnik, Contrete Mathematics, where this equation is on page 44 — Frédéric Grosshans, Sep 24 '19 at 17:01

Gonzalo Medina · Accepted Answer · 2012-01-09T16:04:20.290

37

The manfnt package offers \mancube and \manimpossiblecube:

\documentclass{article}
\usepackage{manfnt}

\begin{document}

\mancube

\manimpossiblecube

\end{document}

enter image description here

Those commands won't directly work in math mode, but you can use a \mbox; something like this:

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{euler}
\usepackage{manfnt}

\begin{document}

\[
  \mbox{\mancube}_{n} +(n+1)^{3}
\]

\end{document}

enter image description here

Of course, you could define a command if you are going to use the cube several times:

\newcommand*\cube{\mbox{\mancube}}

edited Jan 09 '12 at 16:04

answered Jan 09 '12 at 15:34

Gonzalo Medina

505,128

1

@TorbjørnT. you're right. Boxing the cube (as in \mbox{\mancube}) you can use it in math mode. – Gonzalo Medina Jan 09 '12 at 15:40
Perhaps you could add that to your answer as well. – Torbjørn T. Jan 09 '12 at 15:43
@TorbjørnT. right again ;-) Done! – Gonzalo Medina Jan 09 '12 at 15:46
@GonzaloMedina: You may want to add something like \newcommand{\cube}{\mathord{\mbox{\mancube}}} to your example. – Tobi Jan 09 '12 at 15:58
5

@Tobi A safer way might be using \text of amsmath; \mathord is not needed anyway: a box in math mode is always an ordinary symbol. – egreg Jan 09 '12 at 16:03
@Tobi good idea; thanks. I've updated my answer. – Gonzalo Medina Jan 09 '12 at 16:03
Congrats on keeping the very same font as the OP used :-) – raphink Jan 10 '12 at 07:18

Symbol for cube

1 Answers1