# Tagged Questions

{matrices} is about matrices in {equations} and {diagrams}.

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### How to add a matrix to a LaTeX document

How do we add a matrix to a LaTeX document?
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### Highlight elements in the matrix

I have a matrix and need to highlight some elements in the matrix. I have found how to highlight a single element (I want to put the cell in the square):  A = \begin{bmatrix} \fbox{0} & \fbox{0}...
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### “Single ampersand used with wrong catcode” error using tikz matrix in beamer

I am having trouble getting a basic example of a matrix of notes to show up in my beamer presentation. I am using the code copied from the pgf manual. Here is a complete working example. The error I ...
10k views

### How do I label different rows or columns of a matrix using braces?

I have a matrix enclosed in brackets [ ] (or (), or {}, or |'s, or ||'s): - a b c d - | e f g h | | i j k l | - m n o p - which I want to label like so: R |---| -- - a b c d ...
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### Perform matrix operations (addition, product, transpose, etc.) in LaTeX?

I know the calc package can perform infix-notation arithmetic in LaTeX... but I want more! I'd like to perform (not necessarily infix-notation) linear-algebra operations such as scalar ...
3k views

### Is there a way to automatically transpose a matrix written in Latex?

As writing matrices in LaTeX is an extremely time-consuming activity, I was wondering if a software or a site exists that automatically gave the transposed form of a matrix, that is to say, given a ...
19k views

### What's the best way make an “augmented” coefficient matrix?

When studying systems of linear equations, it's nice to remind people that the last column of the coefficient matrix holds the constants. This is often done in books by putting a vertical line ...
88k views

### typesetting column vector

I would like to define a command which typesets a column vector. For one vector I can have something like: \left( \begin{array}{c} a\\ b\\ \end{array} \right) I would like the command to produce ...
30k views

### How can I increase the line spacing in a matrix?

I'm trying to create a pmatrix whose components are rather complicated fractions (Christoffel symbols), and the line spacing is too small making the whole thing a bit cramped and hard to read. Is ...
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### How to construct a confusion matrix in LaTeX?

A confusion matrix looks like: Is there an easy way to do the same using LaTeX? Otherwise I could just create a diagram with any software.
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### Matrix change row or column background

I have a matrix shown below. I would like to have the whole row green rather than only the cells ... how can I do that? \label{eq:appendrow} \newcommand\x{\times} \newcommand\y{\...
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### TikZ: Curve through specified points

\documentclass{standalone} \usepackage{comment} \usepackage{tikz,pgf} \usetikzlibrary{fit,scopes,calc,matrix,positioning,decorations.pathmorphing} \begin{document} \begin{tikzpicture} \begin{...
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### Force latex to show a square matrix as square

How can i force latex to print out square matrix as a square matrix with equal width and height in math-mode? I also read amsmath documentation, but don't found any useful help on it. For example ...
7k views

### matrix in a matrix

I would like to draw a matrix with top left, top right, bottom left and bottom right blocks. The top left should be a 3x3 matrix with numerical entries, the top right is 0, the bottom left is 0 and ...
5k views

### Array with labeling columns

Is there an intelligent way to label (or name) columns in a matrix? I would like to have something like \[M=\left[\begin{array}{c|cc} 1 & 2 & 3\\ 4 & 5 & 6 \end{array}\right],N=\left[\...
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### How do I make a small pmatrix?

I want a small matrix but the only command I can find is \smallmatrix which leaves the brackets out. Is there a simliar one that includes brackets?
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### Are there specialized libraries or packages to draw blocked/partitioned/splitting matrices in Tikz?

I need to write matrix splitting and factorization operations (for my linear algebra course). It is hard to do these is direct Latex. I can use Visio to draw these easily, but I'd prefer to use Tikz ...
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### How to typeset block matrices?

I need to typeset a block matrix that is made of a 2X2 structure of blocks such that the (1,1) block and the (2,2) blocks are zero and the (1,2) and the (2,1) blocks are non-zero (and happen to have a ...