Questions tagged [integral]

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19
votes
4answers
4k views

What kind of integral is this?

can anyone tell me what kind of package or what to type for getting an integral like this on the image, where the \frac{happines}{time} is below death? All the integrals I can find will push the frac ...
9
votes
4answers
943 views

Plot complete Fermi-Dirac integral in Lualatex

I am trying to plot this function with lualatex
8
votes
4answers
2k views

What are the LaTeX codes for clockwise and counter-clockwise integrals (∱ and ⨑)?

If you do know, which package do I need to use? Thanks.
7
votes
2answers
401 views

Macro for integrals, a problem with limits

For a while now I have tried to come up with a macro, that can properly format inegrals (the way I like). Aswell as giving it a few options that can be chosen e.g. \int and \oint. So far there is a ...
7
votes
2answers
851 views

Awkward spacing for integral in exponent

I'm trying to put an integral in an exponent with the following LaTeX: \begin{align*} e^{G(t)} &= e^{\int{\frac{t}{1+t^2}dt}} \\ &= e^{\frac{1}{2}\ln(1+t^2)} \\ &= \sqrt{1 + t^...
7
votes
0answers
335 views

Integral limits placement with unicode-math

I'm struggling with integral limits placement when the unicode-math package is used (both under LuaLaTeX and XeTeX). The following example illustrates the issue: \documentclass[10pt]{article} \...
6
votes
4answers
995 views

Triple integral in mathpazo

Using \iiint seems to work fine to generator a triple integral. However, it doesn't seem to work if I include \include{mathpazo} in the preamble. Any solutions for this? I am using the Palatino ...
6
votes
2answers
451 views

Writing an alpha integral

How can I change this integral $$\oint_V f(s) \,ds$$ to display alpha instead of o? I tried to write alpha instead of o, but it did not work.
6
votes
2answers
1k views

Integral sign not covering entire fraction

I have a case where I'm showing an integral of a fraction, but the integral sign doesn't stretch down to cover the entirety of the fraction: This results from the following MWE: \documentclass{...
6
votes
1answer
2k views

Riemann sum plot

I have a tikz-pgf-question. I'd like to draw an arbitrary Riemann sum for simple function to illustrate the definition of \int_{a}^{b} f(x) dx. My MWE is here \documentclass{article} \usepackage{...
5
votes
3answers
276 views

How to write “upright” integrals with automatic sizing

I've been trying to make the integral symbol "upright", meaning I want it not to be slanted, as in Born's Principles of Optics 7th edition. I've tried the \varint of the wasysym package, but it ...
5
votes
4answers
385 views

Rubber banding integrands around nested fractions

I've been stuck on this problem for a while and can't find anything similar that is able to help me. I am attempting to write an equation where there is an integral, with limits, of a fraction, where ...
4
votes
2answers
139 views

Square integral symbol

How can I write a square version of the integral sign? I'm looking for something that has the same height as a regular integral sign and looks like this: Note that this symbol is not found by ...
4
votes
1answer
388 views

Special double integral symbol - unable to find it in a4symbols list

I have been using $\fint$ and $\iint$ for average integral and double integral respectively. Is there a symbol which combines both, i.e $\iint$ with a horizontal line across as in $\fint$? I can't ...
4
votes
1answer
169 views

Problem with the placement of limits of integration in stix2

There seems to be a problem in placement of limits in the stix2 package. The limits are placed too far from the integral sign. Here is a MWE. \documentclass{article} \usepackage{stix2} \begin{...
4
votes
1answer
203 views

Graphing Areas of Integration [duplicate]

Is there a better way to plot a graph and shade a particular area? I've pieced what follows below from other answers, but when I try to extend the axes beyond the plot itself, the whole circle becomes ...
4
votes
1answer
163 views

How can I use two similar usepackages for many similar commands?

For example I want to use \iint from ams package and also mathabx package in one file together. Actually I want a command that neutralizes ams package effect and replace it with mathabx package ...
3
votes
3answers
307 views

Integral with fraction and square root produces wrong vertical alignment

This code produces an ankward vertical alignment which involves the integral symbol and the fraction with the square root at the denominator. Why? How can I fix this? \documentclass[a4paper]{article} ...
3
votes
3answers
278 views

How to display fraction, integral in more height?

I have \documentclass[12pt,a4paper]{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \begin{document} 1st period. Year 2011 Time: 3 hours \...
3
votes
3answers
221 views

Import font, straight integral symbol

I tried a lot (2 days) and try to find a way to extend a answer Using XITS with pdflatex but I am unable to understand the method here. How do I extend above answer to include vertical closed ...
3
votes
2answers
2k views

Integration brackets are not tall enough

Consider the following latex code: V = \int_0^2(4-x^2)dx = 4\int_0^2dx - \int_0^2x^2dx = 4\left[x\right]_0^2 - \left[\frac{x^3}{3}\right]_0^2 Notice how the first pair of brackets renderd by 4\left[...
3
votes
2answers
109 views

Import txfonts integral

I was trying to import the integral symbol from txfonts. In txfonts.sty I was able to find only multiple integrals of any type but the simple single one. I am sure I am missing something, can someone ...
3
votes
1answer
51 views

How to `ignore' space demands in math mode

Sorry for the title, I couldn't come up with a better one. I need to typeset an integral like this. \int\limits_{f(x) < g(x)} \mathrm{d}x\,F(x) The point is that the condition for the domain of ...
3
votes
2answers
412 views

How to create your own integral sign with limits

Following on from this question, I'd like to be able to do this but with an integral sign. The proposed solution is the following: \newcommand{\opA}{\mathop{\vphantom{\sum}\mathchoice {\vcenter{\...
2
votes
2answers
225 views

how to put a semi circle on integral sign in mathmode?

I want to make a semicircle on integral sign like \ointclockwise for path integral. hope you can help.
2
votes
2answers
128 views

How to display negative limits for an integral in LaTeX? [closed]

I am having issues displaying negative limits for an integral. My code is in Python: f"Use substitution to evaluate the definite integral $_\\displaystyle\\int_{stra}^{strb} {latex(f)}\\,dx$_." It ...
2
votes
0answers
152 views

Trapezoidal rule with pgfplots [duplicate]

I'm looking for a way to illustrate Trapezoidal rule. I've seen this code to illustrate Riemann sums (Riemann sum with pgfplots -- can't seem to make graph look right) but I don't see how to adapt ...
2
votes
0answers
276 views

Integral too big [closed]

Integral become too big. Code: \documentclass[10pt,a4paper]{article} \usepackage{cmap} \usepackage[T2A]{fontenc} \usepackage[utf8]{inputenc} \usepackage[russian,english]{babel} \...
1
vote
2answers
74 views

How to write an integral like this in MathJax/LaTeX?

How can I write an integral with underlined characters evenly spaced between two integral signs like this in MathJax/LaTeX?
1
vote
2answers
480 views

Compress integral symbol \int horizontally

As the title suggests, is there a way to adjust the width of the integral symbol by compressing it in the horizontal direction? Adjustbox only seems to allow me to adjust the height, and the width ...
1
vote
1answer
79 views

Line integral with square arrowed path

I know esint package can type line integral with square paths: $\sqint$, but today I need a square arrowed line integral. Does anyone know how to do it ?
1
vote
2answers
185 views

Measure spacing of \int

I would like to be able to measure the space taken up by an \int and have that length stored in a \newlength{}. It is not as easy as \settowidth{\@IntWidth}{\widthof{$\int$}} In the MWE below, I ...
1
vote
3answers
132 views

How to represent an integral equation over a pulse duration of a circuit in latex?

I would like to represent the following integral equation using latex. The square pulse in the integral denotes a square pulse of a clock. Can anyone suggest me how I can use the square pulse here? ...
1
vote
1answer
559 views

Integral sign in LaTeX beamer

I am new to TeX Stackexchange and I do have a question. I hope that you can help me. I am working with a beamer presentation and I prepare my TikZ pictures in a separate document (article class). I ...
1
vote
1answer
40 views

What's the code for “evaluated at” line with separate limits? [duplicate]

I want the limits separated, like in the second one here: TOO CLOSE: $\int_{a}^{b}$ RIGHT: $\int\limits_{a}^{b}$ How to I do the same thing with the vertical line "evaluated at"-limits? TOO CLOSE: $...
1
vote
1answer
449 views

How do we get the integral sign below? [duplicate]

How do we get the integral sign below?
1
vote
0answers
104 views

cmintegrals options for newtxmath not working [closed]

So I was recently looking for free alternatives to mtpro2 and newtx caught my attention. I decided to run newtxmath package with the Computer Modern integrals via the option cmintegrals, but ...
1
vote
0answers
201 views

Using Symbol font for extended integrals in LaTeX

I wish to make my integral symbols in pdfLaTeX documents appear the same way as in the following example: The integral symbol comes from the Symbol font which is shipped with Microsoft products, and ...
1
vote
0answers
63 views

Make the integral symbol bigger [duplicate]

How can I make the integral symbol bigger independent of the rest of equation? The symbol appears with the same size of a delimiter.
1
vote
0answers
353 views

Correct spacing in integrals [duplicate]

I'd like to know how you prefer to typeset integrals. As you see in the following minimal working example I've made the space between the integral symbol \int and the integrand a little bit smaller ...
0
votes
2answers
388 views

Using \raisebox and \displaylimits on an integral sign

As part of a larger project, I am trying to lower the superscript a of the following integral so that it touches the integral sign itself. Here is the code I am using: $$\int\displaylimits^{\mathrel{...
0
votes
1answer
125 views

how to write cluster integral with latex?

How can generate the following equations with latex?
0
votes
1answer
68 views

How to balance the vertical positions of equations inside an `empheq` environment

To write grouped equations, I use the empheq package with some [left=...] option , which in general works as expected. However, when having a line with an integral sign, and I guess this may happen ...
0
votes
1answer
140 views

Latex Beamer \shade

I have this code: \begin{frame} \pagestyle{empty} \frametitle{Tvorba grafu} \begin{tikzpicture}[scale=1.7] \shade[top color=blue,bottom color=gray] (0,0) parabola (1.25,2.5) |- (...
0
votes
1answer
186 views

Does Overleaf support \oiint?

Opening a default blank document in Overleaf, the \iint symbol resolves, but \oiint (closed double integral) does not. Here is my sample. I've tried adding a few \usepackage{} statements. Any ideas? \...
0
votes
1answer
156 views

Esint package - proper \oiint symbol (not bitmap) on MikTeX and Windows

When I want to print integral symbols such as \oiint using the esint package, the integral signs look ugly: MWE: \documentclass{article} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{...
0
votes
1answer
382 views

Greek letters not showing in Integral bounds [closed]

I am trying to write the definition of the Fourier Series in MikTex. However, on the Integral bounds the Greek letters to not show up. \theoremstyle{definition} \begin{definition}{} \label{...
0
votes
0answers
45 views

Punctuation spacing in math that ends with a differential \dd{}, and the physics package

It seems the physics package adds an extra (thin) space after \dd{x}, before my punctuation (usually "," or ".") and I don't want this. This is a common scenario for me, especially if I'm displaying a ...
0
votes
0answers
27 views

How can I put symbol straight in the middle below integral? [duplicate]

How can I put the symbol straight in the middle below the integral ? $ \displaystyle \int_{\left[ 0, +\infty \right) } f dm_1 $
0
votes
0answers
24 views

Counterclockwise arc integral Latex Symbol [duplicate]

Looking for the code for a Latex integral symbol with a half circle, concave cave down, and an arrow pointing in the clockwise direction. Does such a symbol exist?