Tagged Questions

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

2k views

Some problems drawing linked lists with TikZ's matrix library

Some time ago I found the question Draw an adjacency-list representation of a graph with tikz and wanted to solve it. I could but with some problems which still remain and How should I draw a singly/...
6k views

Vertical vectors in angle brackets

I wanted to produce the following formula: which is nothing but a vertical vector in angle brackets. I expected the following code to do the job: \left\langle \begin{matrix} a \\ ...
3k 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} \usepackage{...
976 views

Heatmap of a triangular matrix (or a sparse matrix)

So let me first of all shamelessly steal heatmap code from this answer to Drawing heatmaps using TikZ \documentclass{standalone} \usepackage{colortbl} \usepackage{pgfplots} \usepackage{pgfplotstable} ...
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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 ...
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How to create a matrix with rows and columns labeled (at the right side)?

I would like to create a matrix with rows and columns being labeled. I would like the matrix elements to be right aligned, the row labels being displayed to the right of the matrix, and the column ...
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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{bmatrix} N & B_i \\ B_i^T &...
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Write elements above and right outside the matrix

I found writing matrix's code is a boring work. There is one, you can see in pic below. Can anybody help?
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vertical lines in matrix using tikz package

my problem is interconnected to my two previous posts (here and here) and i've tried to incorporate answers into solution but without success. My task is this matrix multiplication with added ...
197 views

Strech the text to the borders of a node by using \hfill

The text inside the nodes is not streched to the right side of the node by using \hfill. Could it be the reason that it doesn't work with font=\tiny? But I need the text that small and I would like ...
121 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 ...
2k views

TikZ two-blocks matrix

I would like to get a plot like the one I sketched below, basically two blocks of the same matrix with arrows going up and anti-diagonally for the red block and arrows going up for the green one. The ...
71k views

3 dots in matrix

I was wondering if anyone knew how to draw 3 dots in a matrix that go in a diagonal way usually to represent that element flow similarily in the slots. I know there's one that goes in the bottom right ...
975 views

Correct delimiter height in TikZ

When using the left delimiter and right delimiter options, I am having the problem that their height is not equal to the node they are surrounding. Here is an example: \documentclass{article} \...
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highlighting diagonal of a square matrix

I have a 3x3 eqnarray. Is there a way to highlight the diagonal with background color, perhaps using tikz? I was using tikz ellipse to highlight equation terms, though stretching the ellipse to the ...
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 ...
11k 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.
4k 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. ...
422 views

Formatting an array of complex numbers with pgfplotstable

Say I have two csv files representing the real and imaginary part of a complex matrix. I would like to nicely display this matrix in LaTeX. The difficulty is to correctly round numbers and not ...
361 views

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 ...
720 views

Print zeroes in a sparse matrix in a lighter color

For a report I need to print some sparse matrices as full matrices, so that means that there are a lot of zeroes. If I print them in the same color as the meaningful entries, it doesn't look very ...
842 views

How can I add clips above matrix?

\documentclass{mwrep} \usepackage{kbordermatrix} \usepackage{amsmath} \begin{document} \bar{P}= \kbordermatrix{ \mathrm{state} & 1 & 2 & 4 & 3 & 6 & ...
6k views

Negative Sign and Matrix Alignment

I am having trouble centering the elements of a matrix such that the negative sign is not taken into account during alignment. Additionally, I would also like the space between the left parenthesis ...
6k views

Cannot insert multirow within multicolumn

I want to make a matrix that incorporates both multirow and multicolumn. However the code doesn't work. Sorry if the question is stupid, I am playing with matrices the whole day and probably I am ...
419 views

How can I add size of Tikz drawing into size of equation? (PART 2)

Related to: - How can I add size of Tikz drawing into size of equation? Code presented below is the result of combining code from solutions to: - How can I add clips above matrix? - How can I add some ...
5k views

Arrows at right angles on a tikzpicture matrix

I'm trying to do something pretty simple but haven't been able to find an answer so far. I have a flow chart and I want to draw straight arrows at right angles instead of 'bent' arrows, inside of a ...
666 views

Squares in Matrix

I would like to write a matrix equation, where the matrix contains equally sized coloured blocks on the diagonal. Something like: Does anyone have any idea how to go about this?
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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 &...
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How to modify a node in TikZ when using beamer's overlays

I have a matrix initialized with some colors and no values. With the help of beamer's overlays I wanted to modify the matrix in the next step, changing some of the colors and inserting some values. I ...
732 views

TikZ Matrix - How can I align content horizontally which is spanning over multiple cells/rows?

I'd like to finetune the big rectangle in the last column and its content, i.e. that it's all aligned to the third column's center. It is currently too far on the right: So far I have been unable ...
8k views

How to label a line created with draw command

I have the following: \begin{tikzpicture} \matrix (m) [matrix of math nodes, row sep=1em, column sep=3em]{ \quad & a_1 & \quad \\ b & a_2 & \{ a_1, a_2 \dots a_n \} \\ ...
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Plot a matrix of real values with TikZ/PGF like imshow in matlab

How can I plot a matrix of real values with TikZ/PGF such that it looks like plotted with imshow in MATLAB? \addplot3 does something similar, but I'd like to have that in a color-coded 2D plot.
686 views

Highlighted Matrix with brackets

I would like to produce the matrix as shown in this figure: At the moment, I have this code: \documentclass{article} \usepackage{tikz} \usetikzlibrary{matrix} \begin{document} \begin{...
271 views

Removing the Bracket from the First Line of bmatrix

How can I write a matrix with a header line that is not bracketed? I have used the following code to produce the results below. In addition of being ugly, it is impractical when I need to align the ...
119 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 ...
965 views

Equation with Large Matrix Dimension

I'm trying to code this matrix equation below, I'm not an expert in latex, but I've been successful dealing with other matrix equations. However with this one, I can't achieve it. The alignment of ...
5k views

Putting a tabular in a node within a matrix

I have a picture in which each of the nodes looks something like this: \node (species1) [shape=rectangle,draw] { \begin{tabular}{c c c} \multicolumn{3}{c}{{Species 1}} \\ \colorbox{red}{G1a} &...
7k views

Compact block matrix

I'm trying to create a block matrix and surely there are hundreds of question about those already. But most of what I read so far, seems quite hackish in the end. What I have is: \documentclass{...
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Same height for list of comma-separated vectors

I am trying to typeset a list of vectors spanning a multidimensional space, using the notation span{v_1,v_2,...,v_n} (I haven't found out how to inline it as rendered latex) i.e.: span \{ \begin{...
374 views

Gauss package: gmatrix not equivalent to corresponding amsmath environment

The following quote is taken from the gauss package documentation: The package defines a new matrix environment gmatrix which behaves just like Latex's and AMS-Latex's matrix. But when using ...
267 views

Insert matrix into \subsection{}?

I was trying to insert matrix into a \subsection{}: \subsection{Suppose $X= \begin{array}{cc} 1 & 2 \\ 3 & 4 \end{array}$} This gives me an error: ! TeX capacity exceeded, sorry [input ...
431 views

Matrix doesn't shrink when put in fraction.

This is my minimal example, the problem is the different size of the two x. I would expect the matrix to be shrunken too, but it isn't. Why is this and how is it corrected? \documentclass[a4paper,...
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Matrix with rows and columns labeled

It is trivial to make matrices like so: \begin {pmatrix} s & t & a \\ c & k & x \\ cha & n & ge \end {pmatrix} It is not so trivial to impose labels on the rows and columns ...
802 views

Wrong (too much) vertical space above \vdots in small matrix

If one uses \vdots in a smallmatrix-environment the vertical spacing above the dots is too large. It is the same spacing as in a normally sized matrix-environment. Minimal working example: \...
2k views

Parentheses size around matrix

I would like to get 1:n matrix with \left, \right size parentheses. Default size looks not so good. Now I have $\begin{pmatrix} f_0 & \ldots & f_L \end{pmatrix}^T$ The view I get I can ...
31k 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 ...
1k views

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 ...
3k views

Gaussian reduction of matrices

I have to show a Gaussian reduction in an assignment, and I was wondering what the more space-efficient and neatest way of expressing this is. I thought about using \begin{smallmatrix} (it's only a ...