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

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6
votes
4answers
4k views

Side by Side matrices

How can I get matrices that are side by side? Currently I have the following: \[ \begin{pmatrix}[ccc|c] 1&2&0&0\\ -1&1&2&0\\ 1&0&1&5\\ 0&-2&1&4 ...
3
votes
1answer
33 views

Equations in different part of the text not aligned

I have a problem, in my document I have two sets of similar equations but they do not align. This is the text: If $\tilde{\mathbf{p}}$ is first combined with the system of Eq.\ref{inplane:eq7} and ...
49
votes
9answers
16k 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} & ...
1
vote
1answer
29 views

Parentheses around a matrix

So this is the code that I have so far: \[ Y = \begin{bmatrix} Y_{1} \\ Y_{2} \\ \vdots \\ Y_{n} \end{bmatrix} = \begin{bmatrix} 42 \\ 33 \\ 75 \\ 28 \\ ...
0
votes
1answer
61 views

Highlight matrix cell and have arrows pointing from cell with text [duplicate]

This code is building from the solutions posted here. I am trying the approach suggested from the duplicate solutions. I am having two issues: I am not sure how to get the arrow to point to the ...
4
votes
2answers
68 views

Fix brackets in blkarray

in the code given below, I wanted the brackets from the \blkarray matrix to match those of the original matrix given in Equ (1). The issue is, when I use the \blkarray, the brackets are too short ...
4
votes
1answer
63 views

Error when using tikz \node, \subnode

In the code below, building off solutions found here, I am trying to use the \node and \subnode options to draw the arrow, but I cannot get the file to compile. Can you help me to fix the code to get ...
3
votes
1answer
31 views

Custom align, three \beta = statements, so the beta is custom aligned vertically, and the matrices/vectors are all vertically aligned

Something like: \beta = [], \quad \beta = [], \quad \beta = []. So that the three forms of beta fit on one line. I want the \beta = to valign with the first element of the vector/matrix. I want ...
4
votes
1answer
63 views

colored box around a column in matrix [duplicate]

How can I go about drawing a colored box around a column in a matrix with an arrow and text like this: Here is the code that I have thus far: \documentclass[11pt]{book} ...
7
votes
3answers
2k views

alignat makes 3 good alignments and 1 bad

I'm having a problem with the alignat environment. This code: \begin{alignat*}{9} &X_{12}&+X_{13}& & & & & & & &=1 ...
1
vote
0answers
26 views

smaller smallmatrix

I've got a Vector, and the last entries in this vector is long. Like... longer then the \linewidth. I tried using the \smallmatrix and it just fit on the page, so I was content. But it still breaks ...
2
votes
1answer
28 views

Underbracing matrix

How to make that look OK? Please help!
6
votes
1answer
252 views

why symbolic matrix is not properly displayed in LaTeX?

I'm not able to get the output of this matrix in clear way, is poorly displayed, what to do? \documentclass{article} \usepackage{amsmath} \begin{document} \begin{equation} G(s)=\begin{bmatrix} ...
2
votes
1answer
167 views

General matrices

I want to use LaTeX to add matrix that looks like this: -----L_1----- -----L_2----- . . . . . . . ----L_n----- and matrices where I want to show how a general cell in the matrix looks like (for ...
16
votes
1answer
17k views

How do I get normal-sized fractions in my matrices?

I would like to write something like the definition of a gradient operator in cartesian coordinates. \usepackage{amsmath} \begin{equation} \nabla \Phi = \begin{pmatrix} \frac{\partial ...
5
votes
2answers
43 views

How to have multiple signs for matrix inequality?

I want to know how to draw the three (in)equality signs vertically like shown in the figure.
2
votes
1answer
32 views

Make a tall rectangular array square

I have a tall array that I would like to make square. Unlike the solution here, which works but makes the array wider to match up with the width, I would like to decrease the spaces between rows to ...
0
votes
1answer
24 views

Application for typing matrices on OSX (or online)

Is there an application (on OSX) where you could create a matrix with the help of a graphical interface and that would produce automatically the corresponding LaTeX code? PS: I would be also ...
0
votes
4answers
208 views

What's the easiest way to draw block matrices?

I would like to draw block matrices with special structures like shown in the picture below. What's the easiest way to do that?
2
votes
1answer
27 views

Equal spacing in two matrices with matrix entries of differing length

I try to achieve the following: I have two matrices with similar structure, but whose entries differ in length. I want the two matrices to have identical and even spacing. This is what I got so far: ...
1
vote
0answers
29 views

How to draw straight line cross element showing determinant calculation [closed]

I am working on MathJax. $ \begin{array}{|ccc|cc} 1 & 2 &4 & 1 &2\\ 3& 1 & 2 & 3 & 1\\ 2 & 4 & 0 & 2 & 4\\ \end{array} = (0 + 8 + 48) - ( 8 + 8 + 0) = ...
6
votes
1answer
211 views

Why “p” in pmatrix?

I am using the command \begin{pmatrix} [...] \end{pmatrix}. I wonder why this command is not just called \begin{matrix} [...] \end{matrix} and why a "p" before "matrix".
7
votes
3answers
121 views

Matrices with same height

I want to write a matrix equation and my current code is following: \documentclass[12pt,a4paper]{report} \usepackage{amsmath} \begin{document} \begin{equation} \begin{pmatrix} 1 ...
1
vote
1answer
33 views

Add a note on the left, next to a line of a matrix

I would like to add on the right to the 1 a small note <- i-th line. How to do it ? My solution so far: \documentclass{article} \usepackage{amsmath} \begin{document} \[ \epsilon_i = \left ( ...
2
votes
1answer
25 views

Separators in array (for a matrix) have different, wrong sizes

Why is it so and how to fix it? \documentclass{article} \begin{document} \[ A = \left ( \begin{array}{c|c|c} \\ C_1 & \cdots & C_q \\ \\ \end{array} \right ) \] \end{document}
3
votes
3answers
27 views

control spacing and sizing of submatrices

How can I reproduce this matrix? my attempt so far : \begin{bmatrix} \begin{bmatrix} C_N \end{bmatrix} & \begin{bmatrix} \\ \boldsymbol{k} \\ \end{bmatrix} \\ \begin{bmatrix}& ...
2
votes
2answers
193 views

Writing fraction in matrix

I am trying to write a fraction in a matrix. I am doing it using the following code: \[ \begin{bmatrix} \frac{1}{6} & \frac{5}{6} & 0 & 0 \\ 0 & 0 & 1 & 0 \\ ...
3
votes
1answer
22 views

tabularx and pmatrix alignment issue

Why are the following entries in the table not vertically aligned? I see that the first column is too low and the second column is too high. Here is my code: \documentclass{article} ...
4
votes
2answers
157 views

imagesc in tikz with non-symmetric matrices and squared axis

In principle the problem is the same like in matlab2tikz imagesc TikZ/pgfplots equivalent Can somebody tell me how to adopt this snippet to plot non-symmetric matrices but with squared axis (without ...
1
vote
2answers
28 views

draw diagrams with \xymatrix

I'm using \xymatrix to draw a diagram and I need some of the arrows to be named with a matrix over it. To draw the matrices over arrows, I'm using the \arrow command but, unfortunately, it puts very ...
0
votes
2answers
31 views

Is this space handling of pmatrix environment official?

For example, if we enter the code \begin{pmatrix} a & b & c \\ d & e \\ f \end{pmatrix} it occurs following matrix: a b c d e f not error. My question is that this space handling ...
39
votes
8answers
1k 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 ...
1
vote
0answers
34 views

Creating an Elimination Matrix with strikethrough rows/columns [duplicate]

I am writing a paper, and I need to display an elimination matrix during the steps of finding a determinant. \[ A =\begin {bmatrix} a_{11} & a_{12} \\ a_{21} & a_{22} ...
3
votes
1answer
93 views

How to align matrices on top of each other?

Suppose I have the following situation (don't mind the notations, it's ring theory): \documentclass{article} \usepackage{amsmath} \begin{document} \newcommand{\mymatrix}{\begin{bmatrix} 1 ...
-1
votes
1answer
56 views

Matrix - how do i make this?

How do make this with LaTeX? I want to be able to adjust the names.. and the subscript.
1
vote
1answer
53 views

Plot correlation matrix (pdf) in LaTeX

Ok, giving up... I need to plot a correlation matrix exactly shown in the attached picture. I have 15 images in a PDF form, but the issue is that to plot these images on diagonal in LaTeX. I need to ...
3
votes
2answers
61 views

Create blocked matrix

I have created a blocked matrix as shown below: However, I'm not happy about the following three things: 1) How can I change those two demarcation lines (one with vertical bars and the other with ...
16
votes
1answer
86k views

Matrix in Latex

I am new to Latex, and I have been trying to get the matrix of following form [x11 x12 x13 . . . . x1n x21 x22 x23 . . . . x2n . . . . xd1 xd2 xd3 . . . . xdn] ...
7
votes
2answers
143 views

Highlight the upper or lower triangular portion of a matrix

I previously asked this question here, but now would like to achieve the same goal with a matrix under a different construction. More specifically, how can I highlight or shade the upper or lower ...
4
votes
2answers
96 views

Matrices above matrix in LaTeX [duplicate]

Ok..How to put matrices above matrix when you work with complex equations? I have matrices, such as: I was able to wrote equation in the LaTeX first two matrices on bottom, but the 1x1 matrix on ...
9
votes
3answers
2k views

Equal spacing in matrix

I'm trying to create a matrix that has equal spacing between each of the columns, but so far I have not been very succesful. The code I'm using right now is \documentclass{article} ...
4
votes
2answers
108 views

How to shade or highlight the upper or lower triangular part in a matrix?

How can I shade or highlight the lower (or upper) triangular part of a matrix in some color like Q above?
4
votes
1answer
44 views

Aligning a matrix within a matrix

I've seen a lot on this website that has helped me get started, but I have one last problem: how do I align the 0s in the first row to the matrix below them? \documentclass{article} ...
0
votes
0answers
28 views

Having some trouble with a matrix

Looking over the internet, and still can't find the reason why i am getting errors. Someone able to point me in the right direction or give me an answer? \begin{bmatrix} 1 & 1 & -1 ...
3
votes
1answer
65 views

Why does whitespace above \vdots disappear in bmatrix?

While creating presentations with beamer, I have the problem described in broken matrix gaps in brackets. Using the solution proposed by Loop Space, I discovered that \vdots have an annoying ...
7
votes
2answers
158 views

Equation system with alignment

I want to set up a linear equation system where the individual terms in each equation are aligned with the corresponding terms in the above. Currently, my attempt looks something like this: \[ ...
4
votes
1answer
101 views

Two Sudoku tables side by side

I'm working with a Shidoku table, which is a 4x4 Sudoku table. I'm trying to place two Shidoku tables side by side, with an arrow in the middle, as to show that I'm transforming one into the other. ...
3
votes
2answers
188 views

latex equation is logging a "missing $ inserted. <inserted text> $

I have a big document and all was working good. I made a change into the parameters of the equation and now this is not compiling. I use XeLaTeX to compile normally. \begin{equation} ...
0
votes
0answers
22 views

Dotfill in a matrix [duplicate]

I would like to ask if you know how to make a row entirely filled by dots in a matrix? I tried to use the \dotfill but it isn't proper because it hasn't changed anything, everything is the same after ...
1
vote
1answer
98 views

Rotate matrix in LaTeX

I have a matrix size 25 and I need to rotate it in LaTeX so that it fits the page. How do I do?? PS.: I tried the landscape command, but it did not work because rotated the page but not its contents, ...