Questions tagged [cases]

The {cases} environment is provided by the {amsmath} package to typeset cases in math. The {mathtools} package introduces extensions, e.g. the cases* and dcases environments.

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128
votes
7answers
424k views

How to write cases with LaTeX?

The code i used to write is this one $$ X(m,n)= \begin{cases} x(n),\\ x(n-1)\\ x(n-1) \end{cases} $$ But I don't know how to write this one I appreciate any help. Edited: I'm sorry to add this ...
58
votes
3answers
67k views

How to put a brace on the right, not left, to group cases?

How can I get a brace on the right, not the left, to group cases, using cases? (I know actual cases look better with the brace on the left, but the items I need to group are not literally cases. They ...
44
votes
4answers
21k views

Separate labels in cases

As much as I have tried, it doesn't seem possible to use separate labels when using a casesconstruction (from the amsmath package). Ideally, I would like to be able to write something like \...
31
votes
2answers
106k views

Using “cases” inside “equation” gives error[with “amsmath” loaded]

I'm trying to use the cases environment inside an equation environment. The sample code is quite simple: \begin{equation*} X(\omega) = \begin{cases} 1 \text{se $\omega ...
25
votes
2answers
123k views

Tall curly brace

I would like to put a tall (long) left curly bracket on the left side of the following: \documentclass[12pt]{article} \begin{document} \noindent c: $\{$1, ..., n$\}$ $\rightarrow$ $\{$1, ..., n$\}$,...
22
votes
1answer
45k views

Aligning the right parts in multiple \begin{cases}

Is there an intelligent way to left-align the parts right of & of the two cases environments shown below (if x >= 0, otherwise, if y < 0, otherwise). I wonder if there is a better way than ...
21
votes
3answers
470 views

How to get the cases brace to be a link

I copied the cases code form amsmath.sty and tried to wrap the \lbrace within a macro and added a \left. to get this to compile. This of course loses the size info so the brace is not the correct ...
19
votes
2answers
13k views

Case equation without curly brace

I want to have a case equation without the left curly brace. I am using \documentclass[11pt,a4paper]{article} \usepackage{amsmath} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsthm} \...
17
votes
7answers
4k views

Alignment in cases

I have this text in LaTeX: $$ sgn(x)= \begin{cases} -1 & \mbox{za podmínky } x>0\\ 0 & \mbox{za podmínky } x=0\\ 1 & \mbox{za podmínky } x>0 \end{cases} $$ But I would ...
17
votes
4answers
12k views

Aligning plain `align` and `cases`?

The cases environment works very well for enumerating cases within a large left bracket. I'd like to be able to combine it with the align environment so that equals-signs and conditions also line up: ...
17
votes
2answers
2k views

How to align nested cases?

Please consider the code bellow: \begin{align*} function = \begin{cases} case1 &\mbox{if } n = 0 \\ \begin{cases} case2 &\mbox{if } n = 1 \\ ...
17
votes
1answer
12k views

line break inside cases environment

I have an equation using a cases environment, with one case with a long description text: \begin{eqnarray*} \begin{cases} 1 \text{too long description of the first case, not ...
16
votes
3answers
13k views

Split-like environment inside cases environment

I'd like to have a cases environment with some cases that are too long to fit on one line. I tried this: \begin{cases} \begin{split} long expression \\ second line of long expression \end{...
16
votes
2answers
12k views

Cases environment compresses fractions?

what should I do to stop the cases environment compressing the first line of the following? \begin{equation} \alpha_{mn} = \begin{cases} \frac{16\mu^2}{mn\pi^2\left[\pi^2(m^2/a^2 + n^2/b^2) - \mu^2\...
15
votes
10answers
968 views

Looking for a more appropriate version of \cases

Often-times I find myself wanting to write something like, That is, a vertical brace followed by a table consisting of three columns, the first and the last are math, aligned where-ever I like, and ...
14
votes
1answer
13k views

Problem compiling cases environment [closed]

I am trying to compile a simple cases example, but I'm having trouble with the tabular separator &. Here's my code: \begin{equation} f(x) = \begin{cases} x + 1 & \mbox{blabla}...
13
votes
3answers
79k views

How to typeset piecewise functions [duplicate]

I don't know what the big { thing is called so can't search and when tried and write in LaTeX and didn't find this expression or structure in word either.
13
votes
3answers
7k views

Is there a “cases” environment in text mode?

The title says it all: The "cases" environment works only in math mode. Is there an alternative in text mode?
12
votes
3answers
709 views

TeX capacity exceeded while parsing a date string

I'm trying to parse a date (say, a due date) in a DD-MMM-YYYY format, e.g., 06-May-2012 and create macros \dueday, \duemonth, and \dueyear. I use xstring's commands to extract the substrings. Then I ...
12
votes
4answers
4k views

Function with cases or array

I want to get this function: I wrote two options, but I can't match the picture. Here is the first one: \begin{displaymath} P[\chi_{n+1}=j|\chi_{n}=i]= \begin{dcases} ...
12
votes
3answers
6k views

Cases with square brackets

How can I subdivide in cases with square brackets? I mean I want to write: ⌈ 2_i if ... rank (q, l) = | 2_i + 1 if ... ⌊ .... with square brackets, not braces....
11
votes
3answers
42k views

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 ...
11
votes
3answers
965 views

How to provide more horizontal space between cases in a system?

I have the following ugly system: This is my LaTeX code: \newcommand{\Aaa}{\begin{bmatrix} 1 & 0 \\ 0 & -1\end{bmatrix}} \newcommand{\Ba}{\begin{bmatrix} 0 & 1 \\ -1 & 0\end{bmatrix}}...
11
votes
1answer
3k views

How to use glossaries for different grammatical acronym forms?

I'm writing a paper in German and am struggling with how to make glossaries work for me. In German, there are 4 different cases, and depending on which combination a gender, case, singular/plural and ...
10
votes
3answers
10k views

How can I align multiple cases environment simultaneously?

In one big align environment, I want to put some cases environments. I would like the alignment of the cases environments to be the same. For example, if I write: \begin{align} f(x) &= \begin{...
10
votes
3answers
4k views

Cases environment without the brace

I want to vertically align one equation against two, similar to the cases environment but without the brace: e.g. similar environment to: There must be another solution to the alignment solution like ...
10
votes
4answers
10k views

Aligning conditions in cases environment

I have a piecewise function with three "parts." I would like to have all three conditions aligned at the variable x. How do I achieve that? Here is the code I have so far: \[ f(x) = \begin{cases} ...
10
votes
5answers
4k views

Increase row height in align* cases environment

I'm trying to use cases to present some equations with fractions, and finding that the lines are too compressed to be easily read. Is there a way to increase both the spacing between lines and the ...
10
votes
3answers
740 views

Aligning cases conditions from multiple nesting levels

\begin{dmath*} y_{ic}[n] = \begin{dcases} y_0 + x_0 - x_0 (1 - k_2)^n & k_1 = 0 \\ k_5 + \left( y_0 - k_5 \right) (1 - k_1)^n + \begin{dcases} ...
10
votes
1answer
1k views

How can I add circles and arrows in linear equation systems?

How can I write a linear equation system that uses circles and arrows to indicate what should be added on each line. This is what I have so far: $S = \begin{cases} x_1+2x_2 - 2x_3 = 1 \\ ...
10
votes
2answers
3k views

Proper punctuation after cases environment

I know that when writing a displayed equation, it's correct to write punctuation before the closing \] as follows: This proves \[ x^2 = 3, \] and it follows that \[ x = \pm\sqrt{3}. \] If I'm using ...
9
votes
4answers
908 views

Phantom not working as expected in cases environment

In the image below you can see the phantom not taking up as much width as it's expected in the cases environment: Here's the MWE: \documentclass{amsart} \begin{document} \begin{align*} M+A+T & =...
9
votes
3answers
4k views

Horizontal spacing after cases bracket in equation

How can I add a little horizontal spacing after the cases bracket, at the depicted position, so that 1 and 0 move to the right (the given screenshot looks okayish, but I'm using a different font where ...
9
votes
4answers
2k views

Aligning numbering in a system of equation so it's centered

In the following code ... $\begin{cases} 2y+4x=9 & \text{(I)} \\ 3x-2x=10 & \text{(II)} \end{cases}$ ... I want the (I) to be centered above (II). Right now they are aligned above each ...
9
votes
1answer
2k views

Right aligned first column in a cases environment

Is there a simple way to obtain a right aligned first column in the cases environment. As far as I can see, mathtools does not add such an option. (This question might be read as a request for ...
9
votes
3answers
5k views

Braces around both sides of cases (with text)

How can I add curly braces around both sides of a cases environment which contains text? \documentclass[12pt]{article} \usepackage{amsmath} \usepackage{amssymb} \begin{document} \begin{equation*} \...
9
votes
2answers
4k views

Aligning equations in a cases environment

In my work, I am trying to typeset the following system of equations. \begin{equation*} \begin{cases} \pi_n (i) = {n^2}/{\vol(G_n)} \cr \pi_n (j) = {n}/{\vol(G_n)} \cr q^{(n)}_{ij} = {1}/{n^2 } \...
9
votes
1answer
229 views

Customize cases environment

I usually use the cases environment in the amsmath package - it is very good: \documentclass{article} \usepackage{amsmath} \begin{document} \[\begin{cases} x+y=2 \\ 2x+3y=4 \end{cases}\] \end{...
8
votes
2answers
31k views

Typesetting a function defined by case analysis

Can any one suggess me the code to write this equation in LaTeX.
8
votes
3answers
1k views

How to force alignment of “cases” brackets in an enumerate environment?

I am using the enumitem and amsmath packages to give the recursive definition of the valuation function $\nu$ for classical first order logic. The way I have it set up, the brackets of the cases are ...
8
votes
4answers
331 views

How can I align at relation symbols within a cases environment?

I have used the following code in LaTeX - \documentclass{article} \usepackage{amssymb,amsmath} \begin{document} \begin{table}[H] \centering \begin{tabular}{c|c} \hline { $X=y+z$} & { ...
8
votes
4answers
607 views

How do I have centered equations on right case?

Here is an example of what I want to achieve. I have tried below but the equations won't center automatically. \documentclass{article} \usepackage{amsmath} \begin{document} \begin{gather*} \begin{...
8
votes
2answers
17k views

How to typeset piecewise-defined functions? [duplicate]

I am attempting to write out the basic process for finding the absolute value of some number. In ASCII, this is what I am attempting to write. |X| = { x if x > 0 0 if x = 0 ...
8
votes
1answer
2k views

breqn and hyperref breaking subnumcases environment when used together

I have an issue when using cases, breqn and hyperref together. This is my MWE \documentclass[preview]{standalone} \usepackage{cases} \usepackage{breqn} % For line breaks in some really long equations ...
7
votes
2answers
1k views

cases environment inside an array

LyX is giving a lot of error messages for my Latex code which runs in other places. \[ \begin{array}{rl} p_{Y \mid H_1}(y \mid H_1) & = f_X(g^{-1}(y))\left| \dfrac{dg^{-1}(y)}{dy} \right| \\ \\ &...
7
votes
5answers
1k views

Alignment within cases

I'm trying to align the if's in the following MWE, but also keep the (n times) alignment intact. Applying the mechanism from Multiple = alignment and from Aligning conditions in cases environment, I ...
7
votes
3answers
660 views

How to stop cases from spreading to multiple lines

Once upon a time, there was a 4 line code. A kid attempted to write it as equation (perhaps a bad idea). But, anyway, the attempt failed. The code in question had two tricky elements that made life ...
7
votes
2answers
382 views

Nested cases, alignment and numbering

I have tried all different sorts of solutions including align, aligned, cases and equation to have the result I get with this code except that I want numbering for the three lines in the aligned ...
7
votes
2answers
604 views

How do I get a cases-like environment with a right brace?

I want these braces like this, and I tried it out..Maybe it was wrong how I tried it in LaTeX? LaTeX Code: \documentclass[a4paper,10pt]{scrartcl} \usepackage{cancel}%fürs durchstreichen im ...
7
votes
2answers
8k views

Equation: How to create nested/multiple cases in LaTeX to align the qualifiers

I am having trouble with a particular equation as the cases are nested within a case. It would also be cool if I could align the qualifiers. I tried to post an image of the equation but I could not ...

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