{math-operators} is about operators in math mode. These include sums, integrals and similar, text operators like sin, cos, etc.

learn more… | top users | synonyms

8
votes
2answers
256 views

Spacing after derivative operator in the commath package

I am using the commath package to typeset the derivative operator "D" with the command \Dif. This work well unless I want to add subscripts or superscripts. In this case, the spacing after operator is ...
8
votes
1answer
106 views

Change spacing around binary operators

I'd like to change spacing around binary operators and this issue is discussed there: How to change default for spacing around binary relations? Is there way how to change spacing in math and ...
6
votes
2answers
236 views

When substack and array doesn't work

I am trying to write a formula. But both substack and array cannot fulfil my needs (as far as I know how to use them). The first is how I want it to look like. But I need an i'\neq i below the ...
4
votes
1answer
369 views

PGFPlots: Math operations within coordinates yields error?

How can I use math operators within PGFPlots coordinates? When I write something like \draw (axis cs: 0,0) -- (axis cs: sqrt(3),1), I get the following error: ¡ Argument of ...
5
votes
1answer
121 views

Using operator spacing to indicate precedence

I regularly have to typeset equations that are, because of their inherent complexity, difficult to read. To address this I have gotten into the habit of emphasizing operator precedence by horizontal ...
7
votes
1answer
282 views

Math operator names with Neo Euler in XeLaTeX

I am writing a document in XeLaTeX using Libertine and Neo Euler as fonts: \usepackage[math-style=upright]{unicode-math} \setmainfont{Linux Libertine G} \setsansfont[Scale=MatchLowercase]{Liberation ...
4
votes
4answers
593 views

How to typeset an isomorphism symbol ($\simeq$) with a long bar

Is there any way to typeset in LaTeX a \simeq with a longer bar, or equivalently \stackrel{\sim}{\longrightarrow} without the arrowhead?
3
votes
2answers
305 views

What is the latex code for the symbol “two colons and equals sign”? [duplicate]

I wish to use the symbol as in the following picture, however, I can not find it. Can someone help me?
4
votes
1answer
196 views

How to create the character Д for math mode? [duplicate]

In my research I'm using results of the paper Vinogradov A. M., - The logic algebra for the theory of linear differential operators, - Soviet Math. Dokl., 13 (1972), 1058-1062. The paper uses the ...
3
votes
1answer
89 views

Accented operators using babel

I'm using the es-minimal option in babel which, among other things, disables accents on operators. Since I want accented operators I used the \accentedoperators command however the operators remain ...
22
votes
2answers
645 views

how can I create the negation of mathcal letters

I know that the negation of < is got by \not <. The same with many symbols. But this doesn't work with mathcal letters for example, like \not \mathcal{R} or \mathcal{\not R}.
1
vote
0answers
38 views

Down right arrow similar to \to [duplicate]

I want an arrow of the same size and style as the \to arrow, but first going down and then right, similar to this: . Until now I just have managed to do: \rotatebox[origin=c]{180}{$\Lsh$} But it is ...
7
votes
3answers
230 views

Force inline-type superscript for display equations (but display-type subscript)

I am trying to create a macro \jjoin for a mathematical operator which roughly produces the following behaviour: Inline: \bigvee^{(J)}, subscript (typically i \in I) goes in the usual position (as in ...
27
votes
3answers
1k views

How are big operators defined?

I would like to create a new "big operator", by which I mean something like the Σ character used for summations. I know about the \DeclareMathOperator* command, which creates an operator whose ...
1
vote
0answers
53 views

\lesssim (and some others) not working [duplicate]

I'm writing a latex document and trying to use \lesssim (listed for example in here: http://en.wikipedia.org/wiki/Help:Displaying_a_formula#Relations ) in the text like this: $a \lesssim b$. However, ...
11
votes
2answers
453 views

How can I use \lVert and \rVert norm symbols (‖x‖) with the Iwona math font?

I want to use \lVert and \rVert to denote the vector norm. With Computer Modern this works quite fine. But when trying to use Iwona as a math font, I run into trouble: \documentclass{standalone} ...
2
votes
1answer
118 views

show all equals

I'd like to show that for some function C, if x_1 = x_2 = \ldots = x_n then \[C(\frac{1}{n}\sum_{i=1}^n x_i) = C(x_1) = C(x_2) = \ldots = C(x_n)\] is there a way to do this with a single big ...
1
vote
1answer
1k views

Why is \lcm not defined as default?

Using only a class (report for example) we can use \gcd. But \lcm is not defined. Why? \documentclass{report} \begin{document} \[ \lcm \] \end{document} Why new distributions of TeX Live or ...
9
votes
2answers
485 views

Mixing math character classes (e.g. \mathord to the left and \mathrel to the right)

It is possible to have a symbol or group behave to the left as if it had one particular math character class and to the right as if it had another? One typical case where this comes up is when one ...
2
votes
1answer
154 views

Proper way to typset minimum value of variable in formula?

To typeset a value with a subscript I use this: $U_{\text{res}}$ Which results in: Now I'd like to write "the minimum value of Ures", how would I correctly typeset that? The first thing I tried ...
6
votes
2answers
950 views

Declaring a math operator with cursor placement, e.g. expected value

I'd like to declare a new math operator \ev for representing the expected value, in the form: E<.> so that it looks like the following but with an argument ...
1
vote
1answer
127 views

summation line for multiple rows

Is there a way to add multiple lines of numbers using a "summation line"? Specifically, I want to create something like the below, only better looking. \documentclass{article} ...
2
votes
2answers
103 views

How to type specific things on the hat of expression?

I have problem typing this on the hat of max in the following example:
3
votes
4answers
294 views

How to create subset with sim symbol

I've been trying to typeset as an operator the symbol ⫇ (\subset on top a \sim), but the following solutions have not been helpful ⫇ does not seem to be listed in symbols-a4.pdf, so detexify does ...
3
votes
2answers
464 views

How to write the limit inferior in math environment? [duplicate]

I got it to work with \mathop{\underline{\lim}}_{n \to \infty} f_n(x) Above looks exactly how I want it to look, but initiating operators twice is odd and it's far from simple \lim_{n \to \infty} ...
5
votes
3answers
3k views

LyX and Summation

I am using the latest version of LyX and I am having trouble getting the limits to work at all. Ideally, I'd like to be able to place the summation limits above and below the sigma. However, at this ...
1
vote
1answer
543 views

Changing all the integral symbols from the MnSymbol package, or how to get full math support with Garamond Premier Pro in XeLaTeX?

I'm editing a document in which I chose the Adobe Garamond Premier Pro font as the main font. The only free math font I found that fits with the AGPPro so far is the one from the MnSymbol package. ...
7
votes
1answer
680 views

Integral limits with amsmath in LuaLaTeX

Also reading the thread about Making integral ∫ use \limits by default with unicode-math I'm not quite happy with the solution. With pdfLaTeX I use the code \documentclass{article} ...
7
votes
1answer
146 views

Why do math operators not behave like normal control sequences?

From my experience, most control sequences function as an implicit group, for example g^\textrm{th}. However, if we look at the example below, the first line throws an error while the second line ...
0
votes
1answer
216 views

Double sided inequality [duplicate]

Is it possible to type an inequality operator like in the image above to be used in Stack Exchange Mathematics domain. It would be nice if I could add those H1 and H0 labels too.
3
votes
1answer
911 views

Combining Textstyle and Displaystyle

In my mathematics writing, I often use both superscripts and subscripts on the probability operator. The subscripts are generally lengthy, and I would like for them to appear underneath the operator, ...
5
votes
1answer
1k views

What is a good method for producing a unary plus/minus sign that always works?

Say I have a macro that does something in math mode (say, change the mathalphabet). This macro, \somecommand, takes one argument. I might want use is like this, feeding an empty argument into it: ...
3
votes
0answers
392 views

How to typeset statistical distributions [closed]

What is the consensus way to typeset statistical distributions? For the normal distribution I have seen all of: $X\sim N(\mu,\,\sigma^{2})$ $X\sim\mathrm{N}(\mu,\,\sigma^{2})$ ...
2
votes
2answers
3k views

Package or command for inverse hyperbolic trig functions?

What are the commands for all the: inverse trig functions (arcsec(x), arcCsc(x), arcCot(x)); hyperbolic trig functions (sech(x) and csch(x)), and inverse hyperbolic trig functions?
10
votes
2answers
833 views

Writing the Existential Quantifier with Lower and Upper Limits

When I write $$\sum_{i=1}^{n} x_{i}$$ I obtain indices which are below and above the symbol. I want to write the existential quantifier with this same formatting, but when I try to do so, it appears ...
4
votes
2answers
349 views

Question about mathematical notation

Should one really write $\text{det}A$, instead of $detA$, similarly $\text{Aut}G$ instead of $AutG$, or is $det$, $Aut$ acceptable?
2
votes
2answers
233 views

Multi-line equations with single operator referring to multiple lines

I need to include an equation similar to the following in my text and have failed doing so in various tries, including using the align-environment of the amsmath-package. Basically, the text before ...
0
votes
0answers
63 views

Subscript Bracket [duplicate]

Possible Duplicate: How to put a big bracket under different parts of a equation so that I could write e.g. a text specific to that part in the equation? Does anyone know how to code the ...
1
vote
2answers
886 views

How can I define (user defined) functions in math mode?

I am used to define some complicated and frequent mathematical expressions to be able to use them easily in my papers. For example I have defined \def\c{{\mathbb{C}}} for $\mathbb{C}$ (the field of ...
1
vote
0answers
112 views

How do I get a literal ~ in math mode? [duplicate]

Possible Duplicate: How does one insert a backslash or a tilde (~) into LaTeX? How can I write tilde ~ in math mode? When I write $~$, I get a space. When I write $\~$, I get an error. I ...
5
votes
3answers
268 views

TeX commands and LaTeX commands- what's the difference? Good Introductory manual/guide to using MathJax, LaTeX or TeX on forums?

Update 1: I have just learnt from the answers below that it is more correct to say that MathJax is the format for writing maths on the Mathematics Stack Exchange, that it is essentially made from the ...
7
votes
3answers
405 views

How to extend the text under summation symbol without making extra space

I want to get the following: I tried the following \[ a(i,k) \leftarrow \min\Big\{0, r(k,k) + \sum_{i^{'} | i^{'}\notin \{i,k\}}\max\{0, r(i{'},k)\}\Big\} \] and got How can I make the ...
9
votes
1answer
193 views

How can I get a symbol to behave like an infix operator?

For example, how can I get "x \overline{*} y" to parse like "x * y"? I know I can adjust the manual spacing using "\,", but is there a less superficial way?
11
votes
1answer
17k views

LaTeX adjusting \sum limits

is there a way to show \sum limits partially in inline mode and partially in display mode? i.e., I want to write \begin{equation} \sum_{n=-\infty}^{+\infty} [...] \end{equation} but this way the ...
6
votes
2answers
322 views

C++ operators ^=, <<=, >>= misinterpreted

I write a list of C/C++ operators of the following form : \texttt{operator+=}, \texttt{operator-=}, \texttt{operator*=}... The problem is that \texttt{operator\^=}, \texttt{operator>>=}, ...
1
vote
2answers
460 views

Problems while displaying sum limits below

I'm having some trouble when trying to correctly display a summation using LaTeX. I'm using the package mathtools, and the formula: Cov(O) = \frac{ \sum_{\forall c_i \in C} exists(O, c_i)}{n} My ...
11
votes
1answer
2k views

Correct way to typset esssup (essential supremum)

What is the correct way to typeset essential supremum, with the limits underneath the operator? My first try was \operatorname{ess}\sup\limits_{x\in[0, 1]}, but this puts the x\in[0, 1] under the sup ...
1
vote
1answer
203 views

using unicode-math with math keyboard or hotkeys?

Here is more information about the unicode math-package: http://ctan.mackichan.com/macros/latex/contrib/unicode-math/unicode-math.pdf A great pro for using unicode math, is that your code is much ...
8
votes
2answers
12k views

Fourier Transform (super-fancy) “f”?

What's a "fancy" f I can use to denote a Fourier transform? (I mean something fancier than what \mathcal{F} provides.)
5
votes
3answers
499 views

Unable to make symbol similar to bowtie or lrtimes

I wish to write something like this in latex: I tried using \lrtimes and also \bowtie, but none is able to give me the correct output. Also, i had problems getting that {task1} below the symbol. ...