{math-mode} is about typesetting mathematical content, e.g. tweaking the appearance of spacing and symbols in a formula, or producing specific mathematical constructs. For questions about "wrapper" environments like equation or align, consider the tag {equations}.

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14
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3answers
3k views

Multiple letters without spacing in Math [duplicate]

Is there something I can add to the preamble of my document such that multiple letters without spacing in a Math environment (such as $NP$) do not have extra spacing between them and are not ...
13
votes
2answers
6k views

Equations inside enumerate aligned on item's number

If I type \begin{enumerate} \item \begin{align*} eqn 1 eqn 2 \end{align*} \end{enumerate} the label will appear on the first lines and the equations will ...
9
votes
1answer
2k views

Using \DeclareMathVersion

It is my understanding that \DeclareMathVersion can be used to switch between math font variants. I am wondering how this can be used in a document that leverages two fonts: Times Roman for body text ...
27
votes
3answers
18k 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 ...
17
votes
4answers
9k views

Calculator style base 10 notation in LaTeX

What is the best way to write something like 6.22E-21 in LaTeX, given that I don't want the numerals to be \tt, I do want the E to be small, and I may want the exponent to be negative (without the ...
16
votes
2answers
4k views

Oversized \underbrace's label causes unwanted spacing

Consider this: \left( x-1 \right) \underbrace{ \left( ? \right) }_{ \text{what is this?} } The label is longer than the braced portion, which causes unwanted space between the parentheses. Is ...
29
votes
2answers
18k views

\xRightarrow (text)

I know it's possible to have \xrightarrow (text), but if I try to do \xRightarrow (text) I get an error each time. Does anybody know if it's a syntax error or if there is a other way to produce the ...
20
votes
3answers
18k views

What is the name of the default font in math mode?

I draw figures in Inkscape. When I label elements within the figures with variable names that I have used in the underlying TeX document, I would like them to look exactly the same as in the document. ...
9
votes
3answers
14k views

Strikeout in math mode

How can I strikeout words in math mode (similar to \sout with \usepackage{ulem} in text mode)? I've tried \usepackage{cancel} and \(\cancel{1+1=2}\) but that draws a diagonal line.
9
votes
1answer
2k views

Decimal Long Division

Does anyone know of a package or macro that handles decimal long division? For example, I want to convert 3/8 to a decimal and show all of the steps. I found a macro for longdiv that works great for ...
16
votes
4answers
17k 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 \\ ...
13
votes
4answers
5k views

How to edit the linear programming in LaTeX?

How to edit a linear programming as the following: Max z = x1 + 12x2 s.t. 3x1 + x2 + 12x3 ≤ 5 x1 + x3 ≤ 16 15x1 + x2 = 14 xj ≥ 0, j=1,2,3. I want the format to be ...
12
votes
3answers
4k 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: ...
11
votes
2answers
11k views

How to make math font huge

I would like to typeset a simple-to-medium-difficulty math formula on an A4/letter paper. It needs to be huge and preferably centered and portrait. I can take care of the paper size, the orientation ...
8
votes
3answers
1k views

Math letter's italic correction

Are there a way to display PS and TN and CD and so forth (product of two variables) more beautifully? The normal CM font puts a wide space between the left letter and right letter. If use the ...
7
votes
5answers
4k views

How do you put multiple things under a limit?

I'm reading about inverse limits, and the notation sometimes requires some sort of index or set over which to take the inverse limit. It looks something like this: How would I correctly TeX that? I ...
6
votes
1answer
1k views

Using \leftroot{}, \uproot{} with closed square root symbol

As mentioned in this answer to Nice-looking p-th roots the amsmath package provides \leftroot{} and \uproot{} which allow you to move the position of the root to the left, and up in small increments. ...
3
votes
1answer
7k views

“!Missing $ inserted” error using amsmath environments

I am trying to compile a document with equations but whenever I use \begin{eqnarray}..\end{eqnarray} or \begin{align}...\end{align} or anything like this I get the error msg !Missing $ ...
14
votes
1answer
7k views

How can I position equation numbers always to the left side?

Equations and amsmath environments put equation numbers to the right side by default, the output of \begin{multline} some equation \end{multline} is: equation (number) How can I change it this ...
14
votes
5answers
2k views

Double superscript error involving tilde

When I write {{\tilde{C}}^{0}_{har}}^{\Gamma} (or the same with fewer curly brackets) in Tex I obtain a double superscript error and I can't solve it. Does someone know how to fix this?
11
votes
3answers
802 views

The line produced by \not looks bad on wider symbols

When using \not together with wider symbols such as \Leftrightarrow the diagonal line produced by \not is placed too far to the left. How can the line be properly aligned? For example the following ...
10
votes
6answers
1k views

A \boxed alternative with nicer spacing?

I like using \boxed to emphasize my answers in homework problem sets. However, whenever I use superscripts/exponents inside the box, the box becomes taller than it seems it should. This causes two ...
8
votes
7answers
5k views

frown and mathop/stackrel/overset

I need something like \stackrel{\frown}{MM'} to express the fact that MM' is some path. But I am not really satisfied by the look of the result. The \frown is too high. Would you please have a ...
4
votes
2answers
1k views

Stealth arrow in math?

Is there an easy way to produce stealth style arrows in normal math mode? By "stealth" I'm thinking of TikZ stealth arrowhead. Something like \rightarrowstealth? The question originates from a limit ...
1
vote
2answers
173 views

How to write a mathematical formula in 2 lines?

I have a mathematical formula with many symbols and Greek characters, but it is too big. So I want to split it in two lines. I use \\ between $, but it doesn't work. Does anybody know how to fix it?
16
votes
1answer
415 views

\ifmmode doesn't seem to work correctly inside an array environment

I’m struggling with getting \ifmmode to work correctly when used inside an array environment which is inside a displaymath environment. Here is a minimal example: \documentclass{article} ...
9
votes
1answer
2k views

siunitx: Bold single numeric cells

I'm struggling to make a single numeric cell in an siunitx table bold. (A similar question for making a whole column bold is available here.) I want to define a simple macro which I can set for the ...
6
votes
2answers
706 views

How can I draw a dot under a symbol in math mode?

I'm trying to find the equivalent to \d (or \textsubdot) for the math mode.
6
votes
1answer
2k views

Displaying an equation in a list

How could one get a displayed equation inside a list environment, say itemize, so that the equation is both centered horizontally and on the same line as the bullet, but with the bullet still on the ...
4
votes
1answer
478 views

Typing Following notation in Latex [duplicate]

I need to generate following notation in LaTeX. It's used in differential geometry to denote vector fields. I can't find documentation and detexify is not helpful either.
91
votes
12answers
84k views

What is the best symbol for vector/matrix transpose?

What is the best or most popular symbol for vector/matrix transpose? I have used simply ^T, for example $c^T x$. I think it is ugly, mainly because it is a little too big compared with vector ...
29
votes
2answers
4k views

Drawing a hypergraph

What is the proper way to draw a hypergraph? Is there a package to do this, or is there an easy way to draw such diagrams with a common drawing method like tikz? I'm trying to draw something like
13
votes
2answers
65k views

Dot notation for derivative of a vector [closed]

If I want to use the dot notation for the time derivative of a vector is better (more common) to put the dot over the vector, or the other way around \dot{\vec{v}} \vec{\dot{v}} The first says ...
23
votes
1answer
479 views

Sloppy \left and \right?

The \left and \right commands often produce improvidently large delimiters. It almost always looks better to use delimiters that are just slightly too small than delimiters that are too large. With ...
26
votes
4answers
16k views

How can I prevent inline math formulas from overflowing into the margin?

When I compile my document in LaTeX, some formulas in the document in math mode, between $ $, go into the right margin area beyond all the text. Is there a way to fix this aesthetic problem?
6
votes
1answer
1k views

How can I add some enhancement to the matrix [duplicate]

Possible Duplicate: Highlight elements in the matrix \documentclass[12pt,a4paper]{mwrep} \usepackage{amsmath} \usepackage[nodisplayskipstretch]{setspace} \setstretch{1.5} \begin{document} ...
33
votes
4answers
7k views

Numbers outside Math environment

Should numbers inside the text be placed inside a math environment? For example, if I am writing ...indent code by 4 spaces..., should I write it this way or ...indent code by $4$ spaces...? ...
15
votes
1answer
2k views

Which version of LaTeX permits more than 16 alphabets?

Sometimes I receive a message: ! LaTeX Error: Too many math alphabets used in version normal. I know that there is a limit of 16 alphabets at most allowed to one article. However this message ...
15
votes
3answers
2k views

How can I illustrate decimal to binary conversion?

As part of my homework for discrete math I need to convert different decimal values, both positive and negative, to 8-bit binary representations using signed magnitude, 1's complement, and 2's ...
14
votes
4answers
3k views

What is the correct way to do delimiters?

I've always used \left and \right with my delimiters, but Martin Heller's answer to another question indicates that this method gives incorrect spacing. The correction appears to be prepending ...
13
votes
2answers
1k views

How to make a traditional division

How to make the traditional division? Like that: a |b_ r c
30
votes
1answer
25k views

Difference between \textrm{} and \mathrm{}

Can you explain me what is the difference between \textrm{} and \mathrm{} when they are used in math mode. In what context one is preferred over the other?
12
votes
2answers
13k views

A lateral brace to group a set of equations with labels

I have a set of equations that I'd like to display together (as an example, the Maxwell's equations). Requirement #1: I'd like to have them labelled like in an align environment \begin{align} ...
54
votes
2answers
13k views

What is the advantage of using $f^\prime$ instead of $f'$?

Although the two outputs look quite similar, what is the advantage of using $f^\prime$ instead of $f'$? By the way, here is my code: \documentclass‎{article‎}‎ \begin{document}‎‎‎ \[‎ ‎f^‎\prime ...
24
votes
3answers
7k views

\DeclareMathOperator won't take arguments

I'd like to define a family of math operators that have the same superscript, but different subscripts. My first attempt was: \DeclareMathOperator{\Upd}[1]{U^M_{#1}} But the log tells me that: l.3 ...
20
votes
4answers
4k views

Underscore in textmode vs mathmode

I use _ character often in text mode, so I changed category of underscore: \catcode\_=12, but that applies also to mathmode and now I'm unable to make subscripts with underscore in mathmode. Is there ...
16
votes
4answers
6k views

Intertext vertical spacing

How do I reduce the vertical spacing of \intertext?
10
votes
1answer
526 views

Integral Sign $\int…$

does anybody know how to write integral signs in LaTex that are slanted to the left, and not the right. See here if you do not know what I mean: (From ...
10
votes
4answers
6k views

Coding an equation with description

I want to code this equation in LaTeX: I'd like to know how to code the equation and the description below it with a reference as well.
10
votes
1answer
1k views

How to organize labels when there are too many equations?

I'm writing a moderately long text using LaTeX, and it's great to be able to organize chapters, sections, appendices, and everything else almost automatically. One thing has been bothering me though. ...