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

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3
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1answer
171 views

Words under sum that's in a denominator

if I try this; Substituting the expression for \(\Psi\) in to the above and rearranging we derive an expression for the vacuum field \(\Psi'\) as a function of \(\mu \), \begin{equation} \Psi' = ...
3
votes
1answer
185 views

mathjax \sqrt command

I don't if this forum is the right place where post my question, anyway, it concerns TeX. Mathjax seems to create the bar over the argument of \sqrt command as a box with a sequence of very densely ...
3
votes
0answers
997 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
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3answers
10k views

Sane spacing after min max

The default definitions of \min and \max insert basically no space after them, which looks really awful when stating optimisation problems, etc., in display equations. I could not figure out any way ...
2
votes
2answers
407 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 ...
2
votes
2answers
194 views

Hyphen separating symbols, without intervening spaces

What's the easiest/least ugly way to avoid the spaces around the hyphen in the following macro? \documentclass{article} \newcommand{\nuSwap}{\nu-\textsf{swap}} \begin{document} I get $\nuSwap$, ...
2
votes
1answer
77 views

How to write a particular mathematical expression

I am trying to write an equation which is: Now wrote something like this: $\Delta_w_{k} = p\Delta_w_{k-1} + \Alpha_p$ I wrote it partly as I wanted to check whether I was doing the right ...
2
votes
2answers
5k 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 ...
2
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1answer
2k views

How to write partial eta square in LaTeX?

Problem: Writing partial eta square in LaTeX. I couldn't find anywhere online giving guidance to this statistic symbol. Example (it's the symbol to the left): Any help would be appreciated.
2
votes
1answer
160 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 ...
2
votes
2answers
2k views

Using \Mathsmaller in math display mode makes the character appear to the right of the symbol itstead of below it

I am trying to use \prod in math display mode but it appears large (larger than I want it to be) but when I use \mathsmaller from the relsize package the letter appears on right side of it instead of ...
2
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2answers
3k views

“Greater than” sign shows up as inverted question mark [duplicate]

Possible Duplicate: Why do the less than symbol (<) and the greater than symbol (>) appear wrong as upside down exclamation or question mark? My question is in the title. How can I ...
2
votes
1answer
97 views

How do I reduce the space between operators in math mode? [duplicate]

I have these operators +=, -= etc. in Math mode. LaTeX introduces space around single character operators. So I get + = and - = instead. However, in my case I want no space between the + and the =, ...
2
votes
2answers
85 views

Equation and math system on same line

To add a math system into a LaTeX document, I add to preambol \newenvironment{sistema}% {\left\lbrace\begin{array}{@{}l@{}}}% {\end{array}\right.} then in the document I do something like ...
2
votes
1answer
185 views

Discrete and continuous Centroid equations in LaTeX

I would like to write the following equations in LaTeX: and The first one (with the integrals) I managed to make similarly using the following code: \begin{equation} COG = ...
2
votes
1answer
149 views

Using math symbols inside mbox

I am trying to write something like r=1m or r~1m inlined in my text. Currently i am using $\mbox{r=1m}$. However this gives me problems if I use $\mbox{r \approx 1m}$ it is not working and ...
2
votes
1answer
109 views

Is there a command of the type “\blabla” where I can write \mbox{div}(F)

Maybe my question is easy. When I want to write $$ \mbox{div}(F) = \sum_i (F_i)_{x_i} $$ I have to type \mbox{div}(F), which is cumbersome. Is there a way to define a command \blabla to produce ...
2
votes
1answer
155 views

\textsuperimposetilde does not superimpose as \sum subscript

Compiling the document, the tilde and P lie seperately under the \sum operator, but as the command superimpose would suggest, I would like them to be superimposed. Works just fine when using ...
2
votes
2answers
1k views

Formula for population variance, issues with placement?

From trying to construct the formula by hand, I had come up with the following: \sigma^2 = \frac{\sum_{i=1}^{n}(x_i - \mu)^2} {n} Now this looks fairly correct, however the _i=1 and ^n do not show ...
2
votes
1answer
3k views

How to show a wide bar over a letter?

I want to have a wide bar over XY but it just shows a small bar. Any idea? \item In the standard $(x,y)$ coordinate plane, point $X$ has coordinates $(-4,0)$ and point $Y$ has coordinates $(0,-8)$. ...
2
votes
2answers
127 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:
2
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1answer
65 views

New DeclareMathOperator

In my MWE below, I wanted the create a shortcut for some operators. How can I get the \DeclareMathOperator command to show up like the conventional way of using the actual command $\mathbf{z}(k)$ ? ...
2
votes
1answer
87 views

Vector Arrow Weirdness

Here's something strange: \documentclass[letterpaper]{amsart} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{gensymb} \DeclareMathOperator{\Vi}{\vec{i}} \begin{document} $\Vi$ $\vec{i}$ ...
2
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1answer
1k views

How to write a modified limit operator? [duplicate]

I am trying to write an generalised limit operator, which look approximately like the standard \lim, except it has an additional symbol in front, connected by a hyphen (see example below). I would ...
2
votes
1answer
2k views

LaTeX notation for summation over all combinations of two variables?

Is there a notation that expresses a summation over all order-independent combinations of two variables? I have a single set of objects and want to show the summation of the joint probabilities of ...
2
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1answer
29 views

Is there a way to use commands like \equiv without declaring a function?

I just want to add \equiv to my sentence but I keep getting an error when trying to compile in texmaker. Seems like what I need to do is wrap it in \begin{equation} but I don't want to treat it as ...
2
votes
1answer
173 views

Standard AMS-Sum Operator using MnSymbols?

Because a professor who reads one of the lectures I attend this term writes so slowly, I typeset a lecture script for that lecture in TeX. For the use of some symbols and for better underbrace ...
2
votes
1answer
131 views

If f is the name of a math function, should it not be set upright? [closed]

I was happy to find out that my intuition about setting differential operators and common math constants was right (see the accepted answer). However, this got me thinking. My rationale for using ...
2
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1answer
812 views

Symbol similar to \equiv

What's the command for typing 3 lines exactly like \equiv but with index in the middle of top line? Thanks. EDIT: this is the symbol I meant
2
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3answers
215 views

math cases package problem

I am preparing a presentation with beamer. I want to use a math formulas that contains a cases \begin{cases}{|x|=} x, & for $x \geq 0$\\ -x, & for $x < 0$ \end{cases} the problem in ...
2
votes
1answer
441 views

Formula in displaystyle but operator limit in normal subscript position [duplicate]

Possible Duplicate: Show inline math as if it were display math I have a formula in an equation environmente i.e., in a display style modality. Moreover, since I have to enumerate an ...
2
votes
1answer
202 views

Computing a simple maths calculation and use the result as page numbers in the Table of Contents

Following up this question here, I am looking for a way to compute a simple maths calculation inside the document and let the result of this calculation be the value that appears as page number in the ...
2
votes
1answer
695 views

Custom radical sign with plain XeTeX

I would like to use Cambria Math font in mathematical equation, and I have a simple problem here. plain TeX uses many symbols for the root sign, so it can use the proper one depending on context, ...
2
votes
1answer
31 views

pdfTex: \operatorname with Computer Modern Roman

I am using the default font, Computer Modern Roman, and I am trying to get \operatorname to work properly. The issue is that it appears to look identical to normal text. This question: LuaLaTeX: No ...
2
votes
1answer
107 views

Group binary operation symbol?

I tried to write • as the binary operation for a group (G, •), but \cdot seems too small and \bullet seems too large, so what symbol is normally used?
2
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2answers
95 views

Using \mathtt{A} and the Package \usepackage{MnSymbol}

How can you use the symbol \mathtt{A} and the Package \usepackage{MnSymbol}? My code begin with \PassOptionsToPackage{dvipsnames}{xcolor} \documentclass[a4paper]{book} \usepackage{lmodern} ...
2
votes
1answer
190 views

How to fix \min in beamer?

If I use \min in a regular document, it shows correctly: However, if I use the same command in a beamer presentation I get: Here's my header: \documentclass[mathserif]{beamer} ...
2
votes
1answer
251 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 ...
2
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0answers
26 views

Curl and divergence operators [duplicate]

I'm wondering if there's a TeX package where I could find a proper command to type curl and divergence in equations. Any help? Cheers, Riccardo
2
votes
1answer
65 views

ceiling and floor functions used as min and max: ever seen? [closed]

I remember seeing somewhere people using symbols for ceiling and floor operators together with super/subscripts as substitutes for min and max. Example: \lceil x \rceil ^k to mean \min(x,k). Has ...
2
votes
2answers
68 views

Use mathrm + isomath with beamer

I use isomath to make greek letters italic by default. Sometimes I want an upright operator. Then I use \mathrm. It works in the report, but not when trying to use it in my presentation. This is a ...
2
votes
1answer
315 views

Derivatives are sized differently with commath [duplicate]

I'm writing a derivation in an upper level physics class and I use derivatives extensively. I'm using the commath package \od{}{} command and they are being sized differently in different places. ...
2
votes
0answers
81 views

Power set symbol [duplicate]

I don't know if there's some standard symbol to represent the Power Set in Latex. According to Wikipedia there are some possibilities: I think the first one would be the most appropriate because ...
2
votes
0answers
377 views

Why do people write italic “d”s in integrals? [closed]

In some German books, I see what I consider proper: \int \mathrm d x In other books, I just see this: \int d x Since everybody writes $\sin(x)$ instead of just $sin(x)$, I wonder why people ...
2
votes
1answer
2k views

Definition of cotan function [duplicate]

Possible Duplicate: Define additional math operators to be typeset in roman Is the cotan function defined somewhere? I cannot find it. It is defined as cotan(x)=cos(x)/sin(x). Should it be ...
1
vote
2answers
160 views

How do I place the argument of “min” below rather than to the side?

\documentclass[a4paper,12pt,numbers=noenddot]{scrartcl} \usepackage{mathtools} \usepackage{amsmath} \usepackage{amssymb} \usepackage{bm} \begin{document} \begin{equation} ||\mathbf{x}^{1} - ...
1
vote
3answers
1k views

Redefining Infinity in LaTeX

Infinity is defined as something that is uncountable. But every where I see the symbol of Infinity as a closed loop. My professor said, that it symbolizes that the boundary of Infinity is determined ...
1
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2answers
243 views

Designing a new mathematical operator

We all know that \binom{n}{r} in math mode renders the binomial coefficient. For the purposes of a note, I am TeXing up, I am interested in designing a new math operator. Suppose I called that ...
1
vote
2answers
73 views

Making the product operator (pi caps) with the extremes above and below the symbol

How can I make the symbol of product operator (pi caps) making the extremes remain the same above and below the symbol? (I do not want the extremes on the right side of the symbol) I wanna write this ...
1
vote
1answer
580 views

Defining a prefix operator with space before its argument

I want a particular spacing behavior for a custom operator. I can produce the desired spacing by setting math classes (\mathord and so forth), but I have to do it on a case-by-case basis since no ...