Questions tagged [matrices]
{matrices} is about matrices in {equations} and {diagrams}.
399
questions
72
votes
13
answers
46k
views
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}...
- 721
95
votes
2
answers
41k
views
How to use more than 10 tab stops in bmatrix or other amsmath matrix environments?
I'm using bmatrix environment from the amsmath package, and I'm trying to do something like this:
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation}
\begin{...
- 18.2k
77
votes
5
answers
132k
views
Label rows of a matrix by characters
How to add label to index the rows and columns of the matrix ?
because I want to number the line outside the matrix
\[
\begin{array}{lc}
\ Mat_{\varPhi to M} & \left(\begin{array}{@...
- 1,303
86
votes
2
answers
23k
views
"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 ...
user4692
32
votes
4
answers
35k
views
Where is the \matrix command?
From what I can see, \matrix was a TeX command, but I cannot seem to find documentation on it.
It works in MathJax, so I wonder if it can be used in LaTeX.
ie this is valid MathJax:
$$
\left[
\...
- 4,456
28
votes
4
answers
4k
views
Problem with defining shortcuts for TikZ matrices
For answering a question yesterday I wanted to define a shortcut for creating a matrix inside a tikzpicture. As a minimal example, consider
\newcommand\mymatrix[1]{
\begin{tikzpicture}
\...
- 90.2k
78
votes
10
answers
118k
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 ...
- 935
16
votes
3
answers
7k
views
use of tikzpicture matrix in align or gather environment
So far I have found using the matrix command in the TikZ package is the only way of drawing a T-shape around the bottom row and middle column of entries in a matrix. I now need to use this matrix in ...
- 1,408
58
votes
12
answers
23k
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 ...
52
votes
5
answers
20k
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 -...
- 3,575
92
votes
3
answers
104k
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 ...
- 1,093
112
votes
5
answers
355k
views
40
votes
7
answers
37k
views
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?
\begin{equation}\label{eq:appendrow}
\newcommand\x{\times}
\newcommand\y{\...
- 1,897
18
votes
1
answer
3k
views
Foreach inside a TikZ matrix
Consider this MWE:
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{matrix}
\begin{document}
\begin{tikzpicture}
\matrix [matrix of nodes] {
a \\
b \\
c \\
};
\end{tikzpicture}
\end{...
- 8,151
16
votes
3
answers
9k
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[\...
- 221
12
votes
2
answers
3k
views
Tikz foreach inside matrix
Apparently this question has been asked a hundred times already. But I couldn't get it to work with any of the answers provided.
I want to have nested for loops inside a Tikz matrix. Something like:
...
- 295
24
votes
6
answers
21k
views
bordermatrix with blocks
I need to write a complicated matrix, that has a structure as in the attached picture.
user3307
16
votes
4
answers
16k
views
How to create vertical and horizontal dotted lines in a matrix?
Similar to this question, I am trying to output a similar matrix with dotted line instead of dashed line.
Is there anyway to do this?
I also try to use these three packages:
\usepackage{tabularx}...
- 2,447
88
votes
7
answers
134k
views
How do I left-align entries in a matrix with \begin{matrix}?
I'd like to left align the -1 entry in the following matrix so that the 1s line up. Is there a way to get matrices to ignore signs in that way?
\begin{matrix}
1 & 1 \\
1 & -1 \\
\end{...
- 3,721
61
votes
9
answers
250k
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 ...
- 22.8k
51
votes
5
answers
11k
views
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 ...
- 59.5k
63
votes
2
answers
48k
views
How to create a matrix with 20 columns in latex
The code below works, but when I add 10 more columns, it does not. So, how can I add ten more columns to the matrix below?
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{...
- 3,483
13
votes
4
answers
24k
views
Matrix within equation
I am having some difficulty getting this to display properly.
\begin{equation}
{\bf H} = -{\bf \mu} \cdot {\bf B} = - \gamma B_o {\bf S}_z = -\frac{\gamma B_o\hbar}{2}
\begin{bmatrix} 1&0\\0&...
- 549
41
votes
4
answers
14k
views
Multirow/multicolumn cells in TikZ matrices?
Is it possible to make TikZ matrix cells span multiple rows/columns, like they can in LaTeX tables using \multirow or \multicolumn? Specifically, I'd like to typeset something like the following in a ...
- 1,022
20
votes
4
answers
9k
views
Horizontal row separation line in tikz matrix (like \hline in tabular)
In this question tikz-matrix-as-a-replacement-for-tabular a nice solution was given to let the matrix in tikz behave like tabular.
In this solution cell/.style={rectangle} was used to draw lines ...
- 18.3k
19
votes
6
answers
4k
views
Drawing a large binary matrix as colored grid in TikZ
I have a pretty big binary matrix of maybe 70 rows and 64 columns. For ease of viewing, I would like to draw this matrix in TikZ where e.g. a 1 is represtented by a red square and a 0 is a white ...
- 889
15
votes
2
answers
5k
views
Broken matrix - gaps in brackets
This is my minimal working example.
\documentclass[12pt,a4paper]{mwrep}
%\usepackage{amsfonts}
\usepackage{amsmath}
%\renewcommand\baselinestretch{1.5}
\begin{document}
\chapter{Example}
\begin{...
- 8,471
8
votes
3
answers
4k
views
How to Specify two level row and column labels of a matrix by braces?
I'm trying to write the following matrices.
I used the following code (given by Caramdir)
\documentclass{article}
% Load TikZ
\usepackage{tikz}
\usetikzlibrary{matrix,decorations.pathreplacing,calc}...
- 8,631
47
votes
2
answers
31k
views
TikZ matrix as a replacement for tabular
I would like to use TikZ matrices to for some drawings. I am currently using nodes and positioning them manually to simulate a tabular. That helps in positioning arrows and shading.
However, if I use ...
- 8,151
43
votes
8
answers
19k
views
Using display style fraction in a matrix environment
I'd like use the \dfrac command in a bmatrix environment as follows:
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\[
\begin{bmatrix}
\dfrac{\partial f}{\partial x}
\\
\dfrac{\...
- 1,087
29
votes
8
answers
71k
views
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.
- 545
11
votes
4
answers
13k
views
braces over matrix
I want to make an overbrace and a side brace on my matrix in order to indicate its size. How can I achieve that.
\begin{pmatrix}
1 & 1 & 0 & .& . & . & 0 & 1 \\
0 &...
- 193
10
votes
3
answers
8k
views
Add Overbrace to describe a column of matrix
I want to add some over-braces to a matrix to get the following output:
However, this this what I managed to get:
I don't know how to get the neuron 1 and neuron 2 headings...I was thinking of ...
- 203
22
votes
4
answers
3k
views
Matrix with labels nested in braces
What's the best way to produce a matrix with labels that are nested in braces, like this:
- 323
10
votes
3
answers
7k
views
Underbraces in Matrix Divided in Blocks
How to put underbraces, inside the parenthesis of a matrix, to name both sides of the blocks?
\documentclass[a4paper,12pt]{article}
\usepackage{amsmath}
\usepackage{array}
\begin{document}
.
.
.
\[
\...
- 439
0
votes
1
answer
2k
views
Compilation problem with tikz diagram
As I said, I'm writing math books for school; one of them is about matrices and I have several problems with it.
It's a big code, so I'm trying to summarize it:
Problem with TikZ matrix:
When I try ...
- 543
40
votes
2
answers
163k
views
Vertical line in matrix using LaTeXiT [duplicate]
Possible Duplicate:
What's the best way make an “augmented” coefficient matrix?
I am trying to make a vertical line in a matrix in LaTeXiT. I have read that it should be possible ...
- 503
31
votes
5
answers
74k
views
Diagonal dots spanning multiple lines/columns of a matrix
I'm filling in large sparse matrices, for example
\begin{bmatrix}
0 & -2 & 1 & & -1 & 2 \\
2 & \ddots & \ddots & \ddots & & -1 \\
...
- 413
26
votes
4
answers
10k
views
Draw a line through one column of a matrix
I'd like to "cancel" (draw a line through) a column of a matrix (using \begin{pmatrix}..\end{pmatrix}). How can I do this?
- 4,272
14
votes
1
answer
33k
views
How to add dash lines in Matrix [duplicate]
I would like to know how to add dash lines in Matrix (see figuge)
Cheers
S.L.
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation}
\begin{bmatrix}
N & B_i \\
B_i^T &...
- 715
14
votes
2
answers
10k
views
How to force nodes to have the same size in tikz matrices
Is there some intelligent way to have several tikz nodes have the same height and width? Consider the following example with output below.
I'd like every node in each row to have the same height ...
- 13.7k
12
votes
5
answers
2k
views
Obstacles to simulating an amsmath matrix by a TiKZ matrix of math nodes
I'm trying to figure out a TiKZ-based solution to this problem involving arrows between matrix rows. To this end, I would like to at least be able to make a matrix of math nodes simulate the behaviour ...
- 14.5k
9
votes
3
answers
7k
views
braces on the sides of an easybmat matrix
I created the following matrix with easybmat, and I would like to add at the bottom (respectively right) something like an underbrace (resp. "rightbrace") under each of the two blocks, together with a ...
- 193
6
votes
3
answers
2k
views
Matrix decomposition dimensions diagram
What's the easiest way of making diagrams depicting matrix dimensions such as the following?
I can do it with simple subscripts, but I like the visual effect that these diagrams give.
- 1,147
2
votes
3
answers
908
views
Shrinking or splitting some equations in a group of equations
I have a group of equations, such as
/begin{gather}
Eq1
// Eq2
// Eq3
// Eq4
/end{gather}
Unfortunately, some of the equations in the group are too long to fit on the page. For equations that are ...
- 291
28
votes
3
answers
24k
views
How do I typeset vertical and horizontal lines inside a matrix?
(From the notation used in course notes for Stanford CS229 available online.) I'm trying to typeset the following matrices made up of row or column vectors:
Any ideas?
- 383
27
votes
2
answers
25k
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 ...
- 273
23
votes
7
answers
17k
views
Formatting arrows between rows of corresponding matrices
Some material I'm creating requires output that looks like this:
(note the position of the arrows).
I'm using the following code (with the AMS macros) to generate this, and I'm looking for ...
- 3,683
23
votes
3
answers
23k
views
Underbrace in a matrix
I want to display the structure of a matrix as shown in the image below:
Can this be done using pmatrix and \underbrace?
My attempt at combining pmatrix and \underbrace results in a compile error.
\...
- 6,372
17
votes
4
answers
16k
views
Typesetting a Row Vector
In the question typesetting a column vector, a very nice solution was given for typesetting a column vector with an arbitrary number of rows. I am attempting to modify the code to produce row vectors ...
- 3,701