Is it possible to make cross (+) dots?

Question

Is it possible in latex to do crossed dots?

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{shapes,arrows,shadows,shadows.blur,positioning,calc,arrows.meta,automata}
\usetikzlibrary{matrix,calc}
\usepackage{amsmath}
\begin{document}

\begin{tikzpicture}[every node/.style={anchor=north east,fill=white,minimum width=1.4cm,minimum height=7mm}]
\matrix (mA) [draw,matrix of math nodes]
{
(w_{3,1,1}) & (w_{3,2,1}) & (\hdots) & (w_{3,J,1}) \\
(w_{3,1,2}) & (w_{3,2,2}) & (\hdots) & (w_{3,J,2}) \\
(\vdots)    & (\vdots)    & (\hdots)    & (\vdots) \\
(w_{3,1,F}) & (w_{3,2,F}) & (\hdots) & (w_{3,J,F}) \\
};
\matrix (mB) [draw,matrix of math nodes] at ($(mA.south west)+(1.5,0.7)$)
{
(w_{2,1,1}) & (w_{2,2,1}) & (\hdots) & (w_{2,J,1}) \\
(w_{2,1,2}) & (w_{2,2,2}) & (\hdots) & (w_{2,J,2}) \\
(\vdots)    & (\vdots)    & (\hdots)    & (\vdots) \\
(w_{2,1,F}) & (w_{2,2,F}) & (\hdots) & (w_{2,J,F}) \\
};

\matrix (mC) [draw,matrix of math nodes] at ($(mB.south west)+(1.5,0.7)$)
{
(w_{1,1,1}) & (w_{1,2,1}) & (\hdots) & (w_{1,J,1}) \\
(w_{1,1,2}) & (w_{1,2,2}) & (\hdots) & (w_{1,J,2}) \\
(\vdots)    & (\vdots)    & (\hdots)    & (\vdots) \\
(w_{1,1,F}) & (w_{1,2,F}) & (\hdots) & (w_{1,J,F}) \\
};


\draw[dashed](mA.north east)--(mC.north east);
\draw[dashed](mA.north west)--(mC.north west);
\draw[dashed](mA.south east)--(mC.south east);
\end{tikzpicture}

\end{document}

I made this 3d matrix in latex, and want one of the column enties to both have vertical and horizontal dots, to indicate that it continues, in both directions.

It does not look like the dots command has such an option?

Why not just use \ddots? See How to look up a symbol or identify a math symbol or character? — Werner, Sep 05 '17 at 23:04
Well.. \ddots is a possibility, but could cause confusion for the target audition.. — noob, Sep 05 '17 at 23:12
If \ddots isn't appropriate, leave it blank. And what is with the ()? — John Kormylo, Sep 06 '17 at 00:19

score 3 · Accepted Answer · answered Sep 06 '17 at 00:31

It is not clear what sort of alignment you desire, or the numbers of dots, so I give several possibilities. In all cases, they are superpositions of \dots and \vdots.

\documentclass{article}
\usepackage{amsmath,stackengine}
\stackMath
\begin{document}
$a\stackengine{4pt}{\vdots}{\dots}{O}{c}{F}{F}{L}$

$a\stackengine{-4pt}{\dots}{\vdots}{O}{c}{F}{F}{L}$

$a\stackengine{0pt}{\stackengine{0pt}{\kern9pt\dots}{\dots\kern9pt}{O}{c}{F}
{F}{L}}{\stackengine{-8pt}{\vdots}{\vdots}{O}{c}{F}{F}{L}}{O}{c}{F}{F}{L}$
\end{document}

Is it possible to make cross (+) dots?

1 Answers1