# Tagged Questions

{array} is an environment used in {math-mode}. It can be useful when aligning terms.

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### Problems with alignment of sequences

I want to align two sequences: a_1, b_1, c_1, d_1, e_1 etc. a_2, b_2, c_2, d_2, e_2 etc. here's what I wrote \begin{align} \notag &a_1,\ &b_1,\ &c_1,\ &d_1,\ &e_1\ \...
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### Add more horizontal space in an array

Is there a setting I can input to the array environment, which will slightly increase the horizontal spacing between each entry? I would appreciate it if you could test your code on the following ...
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### How can I update the array package? Warning from tabu

I am trying to use the tabu package, but it returns a warning which does not seem like a good sign. Does anyone know how to resolve the following issue? LaTeX Warning: You have requested, on input ...
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### How to align a system of multiline equations?

I've got a system of equations, each of them doesn't fit the page width, so I'm searching the way to align them so that: the brace should appear to the left with no indentation the first line of ...
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### What is the best way to indicate repeated off diagonal elements in a matrix/array?

I'd like to typeset a matrix of the following kind: When the symbols involved are big, like, in place of $r$, suppose we had $\mu(k-1)$ and in place of $\lambda$, we had $\mu(k-2)$, the matrix B below ...
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### Color a line in array

Is it possible to change a color of a single line inside an array environment? I have an array of possible solutions and I'd like the best one to be highlighted, the array is declared like \...
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### Convert numpy array into tabular

I am doing some data analysis in python, putting the results in form of a matrix stored into a numpy array. I would like to put this results into a report and the best way would be to put a table with ...
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### Columns width of array environment

I'm using the array environment and have something like this: \begin{array}{|c|c|} \hline \textbf{x} & \textbf{y} \\ \hline \hline t_1 & lon_1 \\ \hline \end{array} I ...
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### Problems using \left\{ in array environment

I am trying to define a matrix in segments by enclosing the entries of the matrix in boxes, and also using the open and closed braces to label those segments. So far I have developed the following ...
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### generating LaTeX tabular code during compilation

I use LaTeX for scientific reporting in brain imaging (fMRI). I have a tabular array in LaTeX, that contains quite a lot of rows and columns, which both are brain regions and in the each intersecting ...
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### How to create an array with the last column align on the right at the end of the page (using array environment))

I would like if possible using array environment, to align the last column of my array to the right and at the end of the page. Something like that: \begin{array}{\textwidth}{l r} first column &...
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### Multivariate polynomial long division using LaTeX

How do I typeset polynomial long division using multiple variables in LaTeX? I am hoping to be able to do polynomial long division using 2 or more divisors. Currently, the packages I am using are: \...
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### How do I create a Shidoku grid?

I can't figure out how to create a Shidoku grid using LaTeX. In other words, I am trying to have a 4x4 grid with a bold line separating the 2x2 subsquares. I have the sudoku package but it won't ...
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### Sized delimiters (\left( \right)) are too tall for vertically aligned array (\begin{array}[t])

Please compile the below and the problem will be clear. \documentclass{article} \begin{document} \noindent Compare \[ \begin{array}{l} \land ~a\\ \land \left( \begin{array}[t]{l} \lor ~...
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Right now I have the following for a vertical addition problem but I would also like it to be numbered without messing everything else up. \begin{array}{c@{\,}c} & 1 \\ + & 1 \\ \hline &...
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### breaking lines in a matrix/array environment

I have a matrix whose entries are quite long and must be broken up across multiple lines. The desired break-points are the + operators separating terms in each matrix element. The following code is ...
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### Make each column of a table have same width

I have a table as follows: &\$\begin{array}{c|cc|cc} & x & \multicolumn{1}{c}{y} & i & 0 \\ \hline x & 0 & \multicolumn{1}{c}{} & -49 & \\ y & &...
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### Caption of a table in an array-environment

I used the array-environment to construct a table of data: \documentclass[12pt,landscape]{article} \usepackage{amsmath,amssymb} \usepackage{array} \usepackage{booktabs}% for top-,mid- & ...
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### Vertical alignment through all document

I am processing a text, which is the specification for my mathematical package. The typical style for the specification looks as follows: I can align expressions only in a single environment, using ...
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### PGF/TikZ: How to store strings in array?

I'm trying to generate a lot of name badges. I'm wondering, is it possible to store the names as strings in one array, according to the PGF manual: \def\myarray{{1,"two",2+1,"IV","cinq","sechs",sin(\...
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### How to use tabular/array to arrange figures [duplicate]

Possible Duplicate: How to use images in a table? I'm looking for a solution for automatic alignment of figures within my tex-file. I would like to keep it as simple as possible. I have the ...
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### Make every element of an array displaystyle?

Is there a way to make every element of an array be \displaystyle? I don't want to do something like \everymath={\displaystyle} (or whatever it should be) because I want this for a particular array ...
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### Enforcing That \array Stays Square When Drawing Matrix

I'm trying to draw a block matrix in LaTeX, and this is what I have so far: \begin{array}{|c|c|} \hline I_{r \times r} & 0 \\ \hline 0 & 0 \\ \hline \end{array} Here's a ...
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### Text above matrices

I am new to latex and I am trying to create So far I have been able to create the matrices, like so: \[ N\textrm{ spectra} \begin{bmatrix} a_{11} & a_{12} & \cdots & a_{1M} \\ ...
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### Does \\ in the last line of an array have any effect?

Consider the following example: \begin{array}{l} line 1 \\ line 2 \\ \end{array} Is the \\ in the last line completely optional or are there circumstances under which it has any effect?
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### Tables header row's: how to ignore the column type?

I have several column types defined using the array and collcell package. An example \newcolumntype{N}{>{\collectcell\num}c<{\endcollectcell}} This alleviates making tables a lot, and makes ...
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### Table of displayed formulae

I'm trying to make a table of formulae. I've tried a bunch of different approaches (including \parbox, align, eqnarray, etc.), but none of these satisfy all of the requirements: \hline (or something ...
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### Drawing Multiple Diagonal Arrows in a Table

My question is basically the same as this one, but with many arrows instead. (I'd like to see the TikZ solution--I feel like once I get it here, I'll be able to extrapolate and do it in other cases ...
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### How to align piecewise functions?

I have two piecewise functions defined like this: \begin{align*} \left\{ \begin{array}{ll} i = x^2 + y^2 \\ j = a^2 + b^2 \\ \end{array} \right. \\ \left\{ \begin{array}...
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### Inserting arrays into semantic's inference rules

I want to typeset inference rules containing tables (or arrays) in the premises. I'm using the semantic package, which sets the premises (and conclusion) in math mode, so I thought this might work: \...
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### Clean-Looking Piecewise-Defined Functions

I want to write a clean-looking piecewise defined function. There's a similar post here: How to write a function (piecewise) with bracket outside?, but I have follow-up questions. The two options I ...
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### Create an array of variables

I'm creating a package for my question papers. (I'm aware of the exam class but I don't want to use that.) I have everything ready but I want to create a grading table at the top of the first page. ...
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### How can I use monospaced font inside a matrix (or tabular etc)?

I would like to display a matrix with characters using monospaced font (as in \tt and \mathtt), but I haven't found an easy way to do it. Something like this: \begin{center}{\tt\left( \begin{tabular}{...
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### 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 ...
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### label in subcaption and customize cell size of an array

Using the following code \documentclass[11pt]{article} \usepackage{caption} \usepackage{subcaption} \DeclareCaptionSubType*[arabic]{table} \captionsetup[subtable]{labelformat=simple,labelsep=space} \...