{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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16
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3answers
3k views

Typesetting a Row Vector

In the question typesetting a column vector, a very nice solution was given for typesetting a column vector with an arbitrary number of rows. I am attempting to modify the code to produce row vectors ...
14
votes
2answers
9k views

How to get less spacing in math mode

LaTeX commands like this: Here again, four different simulations are run on networks of size $C^{G} = 25 \times\ 25 = 625$, $C^{G} = 50 \times\ 50 = 2500$, $C^{G} = 250 \times\ 250 = 62500$, and ...
10
votes
4answers
4k 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.
9
votes
3answers
30k views

How to make math symbols bigger?

Is there a way to make math symbols bigger? Reason: I've used \sfrac{q}{m}, and those symbols appear far to small, so I would like to make them a bit bigger. edit: I just thought that \sfrac{q}{m} ...
7
votes
1answer
322 views

Looking for a smarter \left … \right

I'm looking for an automatic fence-resizing macro like the traditional \left and \right, but I need some more features (not to mention \left and \right are quite "buggy" and poorly spaced as the ...
17
votes
2answers
8k views

Force upright Greek letters with isomath

The isomath package makes it possible to typeset upright Greek letters via \mathrm and \mathbf. Is it it possible to force all Greek letters to be typeset upright unless specified otherwise, e.g. to ...
15
votes
5answers
13k views

Typeset mathematical symbols also in sans serif font?

For creating the graphics for my thesis (function graphs, flow charts, line art sketches) I've chosen to use the sans serif font by \renewcommand\familydefault{\sfdefault} However when I use ...
15
votes
4answers
5k views

Intertext vertical spacing

How do I reduce the vertical spacing of \intertext?
12
votes
2answers
8k views

Is there an “underscript” command?

Is there a way to do underscripts? By "underscript" I mean a small font underneath the text object like limits or sums have. I don't want it to behave like a math operator though, where it is typeset ...
10
votes
2answers
719 views

Preventing \MakeUppercase from affecting mathematics

Is there a way to prevent \MakeUppercase from affecting in-text equations? In this example, abc should change to ABC, but n should be left as it is. \documentclass{article} \begin{document} ...
8
votes
3answers
968 views

Align \sqrt with baseline of other mathematical input

The following mathmatical expression is not being displayed the way I expect it to be. \documentclass{article} \usepackage{amsmath,amssymb} \begin{document} $3x\sqrt{y}-4-2\sqrt{y}+6x$ \end{document} ...
7
votes
2answers
7k views

overset text over equal sign in in an Align environment

Look at the following example \begin{align} & x \\ \overset{\text{some long explanation}}= & foo \\ & = bar \end{align} what is the best way to get the equal signs ...
7
votes
1answer
3k views

Punctuation in equations

My document will contain a lot of equations, and as usual in that case I would like to use "punctuation" in the equations, like commas, colons, periods/full stops, semicolons, etc. Is there a special ...
6
votes
2answers
369 views

Automatic repetition of mathematical operators after a line break

In handwritten mathematics it is common for the sake of clarity to repeat the last mathematical operator in those line breaks that occur in the middle of a formula. I mean something like: We compute ...
26
votes
1answer
17k 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?
16
votes
2answers
7k views

\star vs. \ast in formulas. Which one to use?

When you read a formula aloud you say "r and r-star are related by this formula". If you write this formula down you normally write an r with a six-handed star, which would actually be an asterisk and ...
15
votes
3answers
3k views

Can I insert an image into an equation?

I would like to use a small image in an equation, where a symbol like \alpha might otherwise be. Is there a nice way to do this?
13
votes
1answer
5k views

A Matrix with labels, dashed lines

I'm trying to TeX the following matrix, from Guillemin and Pollack (1.4 #13) The best I've been able to do is get the dashed lines with \[ \left( \begin{array}{c:c} B & C \\ \hdashline D ...
13
votes
6answers
9k views

How can I get a big cross to denote a generalized cartesian product?

I'm trying to get a big cross which I can subscript in order to denote a generalized cartesian product (much like how \bigcup works for generalized unions). How can I accomplish this?
12
votes
1answer
397 views

Which packages/practices are relevant for writing Structured Derivations? (similar to Dijkstra's calculational style of proofs)

Does anyone know of any packages that support this style of writing proofs? The only things that I've found are: tex-ewd, a bunch of plain TeX macros on CTAN written specifically with Dijkstra in ...
11
votes
3answers
1k views

Define particle names to use upright greek letters in math mode

Currently I have my electron neutrino & beta particle marco defined as \newcommand{\eneutrino}{\ensuremath{\nu_e}} \newcommand{\belectron}{\ensuremath{\beta^{-}}} ...
11
votes
2answers
11k views

Sums in math mode: how to display index under the sigma sign?

I have a fraction with sums above and under the line. How can I convince LaTeX to write the indices of the sums under the sigma instead of next to it? \begin{displaymath} \frac{\sum_{s \in S} ...
10
votes
3answers
2k views

How can I manually choose the size of a wide accent? (math mode)

I would like to replace the usual \hat in maths with a larger one, but I do not want it to stretch. The size I want is "the smallest \widehat" (as in $\widehat{.}$). Is there a way to put that one ...
9
votes
1answer
747 views

Can I change all math output to use monospaced text?

Is there any way of modifying the preamble, so instead of typing $\mathtt{x}$ ... \begin{eqnarray} \mathtt{y} & \mathtt{=} & \mathtt{z^\pi} \end{eqnarray} I can omit the \mathtt{...} ...
9
votes
1answer
417 views

Diagnosing the “too many math alphabets” error

I recently hit up against TeX's "too many math alphabets" error. I'm trying to diagnose what is using up my math alphabets, as I can't work out where they are going. Of course, I could just start ...
8
votes
2answers
474 views

How can I use color in a mathematical expression without losing horizontal spacing?

How can I use color in a mathematical expression without losing horizontal spacing? \documentclass{article} \usepackage{xcolor} \definecolor{red}{HTML}{dd0000} \begin{document} \[3+(-5)-2+3\] ...
8
votes
4answers
42k views

Bold text and newlines inside equations.

What I'm doing: \usepackage{amsmath} \usepackage{amsthm} \usepackage{eucal} \usepackage{amssymb} \usepackage{mathrsfs} % don't know what some of those do, but i think all the math related ones are % ...
7
votes
1answer
200 views

How to automatically add \! in subscripts?

This code \documentclass{article} \usepackage{fouriernc} \begin{document} $a_1$ $a_{\!1}$ \end{document} produces this output: I like the spacing on the lower one much more. Is there a way to ...
6
votes
3answers
4k views

Break an inline math formula

I have a theorem that looks like this: Now I would like to break the (A....D) math expression. The problem is, that nothing I did from the solution of this answer helped (since probably people will ...
6
votes
1answer
958 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. ...
5
votes
4answers
251 views

Incorrect delimiter size in math mode

The following code \documentclass{article} \begin{document} \[ \left|\tilde{\theta}\right| \] \[ \left|\theta\right| \] \end{document} produces the following output using pdfLaTeX (TeXLive 2012 ...
25
votes
3answers
2k views

Why are so many symbols restricted to math mode?

A common beginner's mistake is to forget \(...\)/$...$ around symbols that require math mode. Why doesn't (La)TeX let people use isolated symbols in text mode by default? I am sure there are at ...
12
votes
3answers
761 views

Replace the `$$ … $$` macro with the `\[ … \]` macros? - Prefer the way LaTeX lays it out, but `$` are faster to write

Is there a way to replace the $$ ... $$ macro with the \[ ... \] macros? (and replace inline mathmode as well) I realised the only way I can write the \sum_{i=1}^{10} t_i is between the \[ ... \] ...
11
votes
1answer
5k views

displaystyle, dfrac, dcases

Am I correct in saying that the dcases environment replaces \frac with \dfrac? The replacement only occurs at the outer-most level of \frac, so if I have \documentclass{article} ...
11
votes
2answers
1k views

Exchange meaning of : and \colon

I usually use the colon symbol : to denote maps. For set syntax there is the braket package. So as the spacing of : is not appropriate, I want it to behave like \colon. I tried ...
10
votes
3answers
375 views

How to color just the `\vec` symbol?

How do I color only the vector symbol in \vec f? I'm using beamer, so xcolor is already loaded. Extra "points" to an answer that also explains how to fish..and not only gives me the fish. Thanks!
10
votes
5answers
1k views

A symbol for the field of formal Laurent series

In my area of math one of the objects that pops up quite often is the field of all formal Laurent series. Now the trouble is that the notation for this field is $\mathbf{C} (( t ))$. Now the two ...
9
votes
3answers
558 views

Inline math or \textit for author defined math constants?

Wondering if people here have a thought on what the best practice is here (if it matters). I used to use baskerville (well, the baskervald package) as my main font and charter as my math font (since ...
8
votes
2answers
2k views

LaTeX color setting for math mode

I'm wondering if it's possible to do something like this in LaTeX: For all numbers (0, 1, ..., 9) in math mode, color it red. For alphabets (a, b, ..., z, A, B, ..., Z) in math mode, color it green. ...
8
votes
4answers
8k views

\overline outside of math mode

If I want to draw an overline over some text, not an equation, how can I do it? \overline seems to only work in math mode, and when used outside of math mode, it automatically says "Missing $ ...
8
votes
3answers
3k views

Rotation in \ddots

I want to write a math equation that needs power of dots. I tried these code {2^{2^{2^{\ddots^{2}}}}} But the dots needs to be rotated
7
votes
3answers
927 views

The modulo two sum sign in LaTeX

I would like to know how I can obtain the 'modulo two sum' sign (unicode 2A0A i.e., the letter sigma with a circle in its middle). I know I can obtain it by using the unicode-math package. But does ...
7
votes
3answers
844 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 ...
6
votes
1answer
246 views

Typeset WHOLE document in sans-serif, Including Math Mode

The reigning answer for the Simplest way to typeset entire document in sans serif (Helvetica) completely disregards math-mode. This might be preferred when all math equations are set display style, ...
5
votes
1answer
2k views

`\hfill`-like spacing in math mode without using `align`

In question 83509, a way of getting \hfill-like behaviour in the align environment is described, but for my purposes, I need one that works in the equation environment. (I want to display some ...
5
votes
4answers
2k views

A bold plus symbol in math mode

I'd like to use a different + symbol in addition to + in math mode, preferably one which is just bolder than the standard one. I'm currently using \pmb{+} from the amsbsy package, but it's a bit too ...
5
votes
2answers
1k views

Change math font for figures only (including TikZ environments within figures)

In my document, I want the main text to be in the times font, and the math to be in the txfonts font. This I can do with the help of the txfonts package. However, I want everything that shows up in my ...
4
votes
3answers
1k views

Using oldstyle figures of palatino (mathpazo) in math mode

I am using \usepackage[osf]{mathpazo} for oldstyle figures and the dcolumn package to align the contents of tables at their decimal point. The problem is that dcolumn automatically sets the aligned ...
1
vote
2answers
106 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?
14
votes
2answers
3k views

Equations, change the font size

How do I change the font size of something like this: I want to increase the font but it always seems to remain the same. \documentclass[30pt]{article} \DeclareMathSizes{20}{20}{20}{20} ...