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

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can't renew math command '\exp', why? [duplicate]

In the preamble of the main.tex file I've written \renewcommand{\exp}[1]{ \exp \left( {#1} \right) } so that the math function \exp automatically includes the round brackets. In the file I wrote ...
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176 views

How to implement a template for math journal? [closed]

I want to design a math journal. Please give me a structure for it. For any article there is an individual .tex file. (Excuse me for my bad English :) )
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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 ...
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0answers
54 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, ...
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146 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 ...
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298 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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2answers
106 views

How to create this simple model with arrow and text on the top?

How to create this simple model with arrow and text on the top ? Regards
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1answer
576 views

Using Trigonometric Functions [closed]

When I type Trig functions using {} or () I seem to get the same result, what is the difference between the two?
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1answer
50 views

use a “+” or “-” by itself without terms

I want to typeset an I with a subscripted "+" sign. How can I do this? I know there's a trick to tell TeX that there are no operands, but I can't remember what it is, and I can't seem to search for it ...
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1answer
218 views

How to use \lll properly

I need the symbol <<< (left rotation). Now from TexStudio help, I found it as \lll. But when I use it, I get an error Undefined control sequence ... \lll. How to fix it?
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1answer
283 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.
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1answer
85 views

Table for Binary Operations

I am trying to build a table used for different binary operations, especially with thicker lines on the sides separating the elements in the set from the "products" of the operations. I know this ...
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1answer
2k views

One more question regarding “function restriction”

This question is in connection with How to typeset function restrictions There, egreg gives a satisfactory answer (at least for me) The problem is that I'd like to do the same thing with ...
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21 views

How do I represent “U+2259 ≙ estimates” in math mode? [duplicate]

I need the math operator that resembles an equal sign with a hat (corresponds to / estimates). I've searched detexify and Wikibooks up and down to no avail. It's such a common symbol. There has to be ...
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2answers
62 views

Resizing the sum operator [duplicate]

The following simple expression produces a sum operator as in (1). But I want it to be bigger like in (2), of course, without altering the size of inner braces. Any suggestion? ...
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0answers
63 views

convert latex formula to image using rtf2latex2e

i am having a tex file converted from rtf (OS: windows 8.1) using rtf2Latex2e . is ther e is any options to convert all formula,subscript ,superscript... to image because when i am trying to convert ...
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0answers
35 views

How can I make the larger integration sign without using this $$…$$ [duplicate]

How can I make the larger integration sign without using this $$...$$ Since I have written that $(Uu)(x,y)=\dfrac{1}{\Gamma(r_1)\Gamma(r_2)} \int\limits_0^x \int\limits_0^y ...
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127 views

LaTeX for word style divide?

In microsoft word equation, it's possible to write a / b in a format that a is slightly upper than normal text, the / can be entered using \ldivide. Is it possible to do so in LaTeX?
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21 views

Renew math operator [duplicate]

There is an already defined math operator inside TeX that I want to change it by another letter. I am just wondering what is the best practice. Below I give an example for the \Pr -> "Pr" command ...
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0answers
13 views

subnumcases and inline math [duplicate]

Code \usepackage{cases} \begin{subnumcases}{}\label{eq:regola_scelta_reject} \min \quad \sum_{j=1}^{H}x_jw_j & $\sum_{j=1}^{H}x_jw_j \geq W_L$ ...
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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 ...
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0answers
41 views

how do you write the grad operator? [duplicate]

Possible Duplicate: How to look up a symbol? I can only get \div which is upside down. I tried typing \grad but no luck. Packages I am using: \usepackage[utf8x]{inputenc} ...
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0answers
76 views

How to write a dirac delta symbol in LaTeX? [duplicate]

Possible Duplicate: How to look up a symbol? I mean the squiggle d_{ij} Dirac Delta thing but I am not sure how to put the notation for it. Does anyone know?
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106 views

How to type hyperbolic secant (sech)? [duplicate]

Possible Duplicate: Define additional math operators to be typeset in roman I'm trying to type the sech (Hyperbolic Secant) in LaTeX, but when I do use \sech(z) it will be known as an ...
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1answer
208 views

How do I write this mathematical equation?

I want to write the shown mathematical equation in LaTeX but I am getting an error. Here this is not eta but it is n. The code which I am writing is \begin{equation} \Delta {E} + \frac{\omega^2 ...