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

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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.
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1answer
157 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 ...
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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 ...
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2answers
2k 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
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1answer
92 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 =, ...
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2answers
73 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 ...
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1answer
170 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
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1answer
138 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 ...
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1answer
108 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
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1answer
152 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 ...
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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 ...
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1answer
95 views

Adding Limits in (La)TeX

i am trying to add multiple limits. not through multiple \begin{atmProof} \[F'(x)\] = \[\lim_{h\to0} \frac{F(x + h) - F(x)} {h}\] = $$\lim_{h\to0} \frac{f(x+h)g(x+h) - f(x)g(x)} {h}$$ \\ Now we ...
2
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1answer
2k 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 $(0,-8)$. ...
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2answers
126 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:
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1answer
200 views

How does one use math operators in xy-pic?

I am trying to format some large commutative diagrams (using the \xymatrix command) that involve colimits, and I would like to have the indexing information for the colimits appear underneath the word ...
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1answer
48 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 $\mathbf{z}(k)$ ? ...
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1answer
68 views

Vector Arrow Weirdness

Here's something strange: \documentclass[letterpaper]{amsart} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{gensymb} \DeclareMathOperator{\Vi}{\vec{i}} \begin{document} $\Vi$ $\vec{i}$ ...
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1answer
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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
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1answer
27 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
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1answer
159 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
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1answer
123 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
717 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
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3answers
206 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
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1answer
429 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
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1answer
199 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
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1answer
689 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, ...
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1answer
74 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?
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2answers
65 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
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1answer
168 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
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1answer
235 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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1answer
60 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 ...
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2answers
55 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
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1answer
272 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. ...
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0answers
79 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 ...
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0answers
369 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 ...
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1answer
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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 ...
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2answers
155 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} - ...
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3answers
880 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 ...
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2answers
237 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 ...
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1answer
546 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 ...
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2answers
105 views

cup with a dot in it - but in mathjax! [closed]

Looking for solutions I have found that there are 3 ways, all can be found here Is a cupdot symbol available in amsmath? It seems that those answers are just copied and pasted all over the internet ...
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2answers
920 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 ...
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1answer
532 views

Math formula changes in tikz environment

I am trying to write a formula in a tikzpicture but it gets changed. The indices for the cumulative product is moved from under the \prod to after. See MWE: \documentclass{beamer} \usepackage{tikz} ...
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1answer
214 views

What's the use of multiple vertical variants for math operators of a OpenType math font?

The only fonts I know that have more than one "large" version of the math operators are Asana Math and Cambria Math. The other ones just have one glyph for the \textstyle version and other for the ...
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2answers
145 views

Writing limits of integration [duplicate]

I'm not sure exactly what it's called, but I would like to draw the line after an integral has been "solved," showing limits of integration, like so: There is a line with a 9 above and 1 below.
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1answer
753 views

A hack for getting a *capital* Weierstrass P in order to represent the Power Set operation [closed]

I've been reading around stack exchange trying to find out how to get the symbol I wanted for the power set operation in set theory. In my opinion, the best and most standard symbol for this is the ...
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3answers
926 views

To show something are appearing n-times!

Suppose I want to write that the sequence 1,1,...,1 appear n-times. How will I do this? Usually in mathematics we use a braces at the bottom and write "n-times" below the brace.
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2answers
4k 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
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1answer
269 views

My limits are moved [duplicate]

Possible Duplicate: Writing a limit so that the subscript goes directly underneath I am not sure how to explain this, but my code doesn't behave $\lim_{(x,y)\to(0,0)} xy + y$ ...
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1answer
39 views

How to have Ran(A) in math mode? [duplicate]

Code \documentclass{article} \usepackage[T1]{fontenc} \usepackage{amsmath, amsthm, amssymb} \begin{document} $\ker(A)$ works! $\ran(A)$ does not work. \end{document} How can you have the Ran(A) in ...