This tag is for questions regarding the display of fractions and related problems.

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3
votes
1answer
149 views

How to properly display a product within a fraction?

I have product inside a fraction, like this: \[ \phi_n(t)=\frac{t^n-1}{\prod_{\substack{ d \mid n,\\ d<n.}} \phi_d(t)} \] And that places the "limits" of the product on it's side, not ...
3
votes
1answer
644 views

Fraction with doubled line

Is there a way to make the fraction line look like the equality (=) sign, i.e., to have two parallel horizontal lines with a little gap in between? Many thanks!
3
votes
3answers
256 views

Problem with \frac macro

I am using this code for a mathematics problem. The code works but the lower fraction looks really dull, the parenthesis is doing something it isn't supposed to. What I can do about this? ...
3
votes
1answer
104 views

How do I make fractions automatically displayed in lines properly?

I would like to know how to make code of fractions in article class more easy to handle. Usually, if I type ${a \over b}$ then LaTeX does not display $a/b$, which is what I want. So I have to say ...
3
votes
2answers
5k views

Bigger fractions without using \dfrac

Is there any way to make fractions bigger? I know one can use \dfrac but is there any code I can use in the document preamble to make all fractions bigger?
3
votes
1answer
5k views

How can I write a latex fraction without a bar? [duplicate]

Possible Duplicate: Separate long math text under sum symbol into different lines? I'm trying to write a math formula like this: \sum_{ \frac{n=0}{(n+k-i) \text{~even}} }^{k-i} This ...
3
votes
1answer
125 views

Problem with fraction

I have a problem with the appearance of a fraction which has in its numerator another fraction. It is not very beautiful as the second fraction is small, even though I use \displaystyle. How can I ...
3
votes
2answers
97 views

Non-commutative fractions

There are symbols for non-commutative fractions? I know \holter and \polter (see here), but they are very ugly (lateral lines are too long for my taste) Edit: By non-comutative fraction I mean a ...
3
votes
1answer
490 views

How to create A/B with LaTeX/LyX?

I want to create frac with this style: Is this possible? I try to find another way, alternative to xfrac.
3
votes
1answer
413 views

Displaying numbers above each other (like a fraction), but without horizontal line and with less vertical space between them

I want to have a 2x2 matrix of arrows (\uparrow and \downarrow) to illustrate electronic spins. I've managed to get a fraction without the horizontal line using \genfrac, but I can't figure out how to ...
3
votes
0answers
210 views

Two fractions with the same size [closed]

Can anyone tell me how I can make $A=\frac{1}{a} \frac{1}{1+\frac{a}{b}}$ look the same? So I want $a$ to be on the same height as the other denominator. MWE \documentclass[11pt]{article} ...
2
votes
2answers
97 views

typesetting addition of fractions

I was wondering what the most efficient way is to typset this: My first thought was doing this with tabular but seems quite messy to me.
2
votes
3answers
576 views

equality sign and fraction bar alignments in complex fractions around braces

When some math expressions such as complex fractions are around the braces which should be on the same baseline, besides, equality sign should be aligned with vinculum, how can we handle? For example, ...
2
votes
2answers
2k views

How to put several lines in the numerator of a fraction?

When I use \\ it breaks the frac layout. Now I come up with the following solution: $$\frac{{O\vdash e_1:T_1 \atop O[T_1/x]\vdash e_2:T_2}}{O\vdash (let\ ((x e_1))\ e_2):T_2}$$ But it gives two ...
2
votes
3answers
112 views

Help on typesetting an equation with fraction in numerator and denominator

I have the following equation: \documentclass{report} \begin{document} \begin{equation} T_e=\frac{T_{disch}\cdot e^{\frac{T_{ahe}-T_{disch}}{LMTD}}-T_{ahe}}{e^{\frac{T_{ahe}-T_{disch}}{LMTD}}-1} ...
2
votes
4answers
42 views

I want to write letters before a numerator like shown below

I'm learning Tex and i have this command but i want the following output, Thanks in advance for the help. my code; \documentclass{article} \begin{document} $$ M_{extra} = \frac ...
2
votes
1answer
56 views

How to add additional numbers in simple fraction cancellation example

\documentclass{article} \usepackage{amsmath} \usepackage{tikz} \usetikzlibrary{shapes.misc} \newcommand{\strikeout}[1]{% \ifmmode% \tikz[inner sep=0.5pt,baseline] \node [strike ...
2
votes
1answer
233 views

ConTeXt: How to create nice-looking fractions

Background Looking to create vulgar fractions in the current font such those in Unicode. LaTeX has the nicefrac package that provides, as the name implies, fractions where the dividing line is a ...
2
votes
2answers
366 views

Improve a fraction's appearance

I am using \documentclass[a4paper,11pt]{article} \usepackage{kerkis} \usepackage{amsmath} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsthm} \begin{document} \begin{equation} ...
2
votes
1answer
53 views

Fraction Brackets size

I wanted to write the following equation but somehow my first bracket before the fraction is shorter, last one is fine. but I have no clue what happened to the first one, also is it possible to ...
2
votes
1answer
3k views

Fractions with `\dfrac` cause compile error

I'm new to LyX. I'm writing my next homework with it to give it a try. My example code is below: % Preview source code %% LyX 2.0.5.1 created this file. For more info, see http://www.lyx.org/. %% ...
2
votes
2answers
2k views

Line spacing with inline formula including fraction

I have a fraction in an inline formula as can be seen in the picture. \dfrac from the amsmath package was used. (This is article class with 14pts and linespread 0.9.) Though the space between the ...
2
votes
2answers
196 views

Can I not use the align & operator within a \frac?

This code is causing LaTeX to throw an error: Missing } inserted. It appears to be because I put a & inside a \frac command (on line 4). I feel as though it should be possible to accomplish my ...
2
votes
1answer
38 views

How can I improve alignment of the numerator and denominator when vector norm bars along with subscripts throw things off?

Here's the really bad case: With a red bar to show what is bothering me in particular: Here's a simpler case where the issue is a non-issue, but perhaps one can get a hint of why it starts to ...
2
votes
1answer
52 views

Bigger rows with fractions in pseudocode

I had previous question how to write pseudocode in latex. I would like to use fractions in pseudocode, but rows with fractions are a little small. Anybody know how to make rows with fractions a little ...
2
votes
1answer
58 views

typing a straightline next to a dfrac? [duplicate]

I would like to type how do I do it? Thanks!
2
votes
1answer
711 views

Compound fractions (i.e., “mixed numbers”) look bad in displaystyle

I find that in display mode, fractions that represent simple rational numbers look way too big. For instance, consider this case: $$ a = \frac12(b+c) $$ The fraction gets inordinately large ...
2
votes
0answers
71 views

Argument of \genfrac has an extra } [closed]

Can't figure out what is wrong with the syntax below, for which I get the error mentioned in the title: \documentclass[11pt]{report} \usepackage{amsmath} \begin{document} $k = \frac{\omega M}{2 ...
2
votes
0answers
32 views

Issues with fractions and align [closed]

I'm really new to LaTeX, I only started last week and I'm having an issue with trying to align equations involving fractions. I want to align at the '=' but I am getting errors: ...
2
votes
0answers
36 views

In the output the denominator appears in front of the fraction [duplicate]

Command \frac works in strange way: Any suggestions? \documentclass{report} \usepackage{polski} \usepackage[cp1250]{inputenc} \usepackage{graphicx} \begin{document} \setcounter{secnumdepth}{3} ...
2
votes
0answers
133 views

How to typeset a continued fraction in the following style? [duplicate]

Possible Duplicate: How do I typeset continued fractions in Pringsheim's concise notation? How to type a continued fraction in displaystyle as shown below? Source: Fischler, Stéfane, ...
1
vote
2answers
895 views

How can I embed \lvert and \rvert into the numerator ?

How can I embed \lvert and \rvert into the numerator? $1 - \frac{ \lvert 1 - t_2 \rvert}{y}$ The above line gives Undefined control sequence error.
1
vote
3answers
285 views

Fraction in brackets

I want to have a fraction in brackets. Something like: $${\log C \brack \log 2}$$, but with the line in the middle. I know this possibility: $$\left[\frac{\log C}{\log 2}\right]$$. Nonetheless, does ...
1
vote
1answer
196 views

Unsqueeze the fraction

For the LaTeX code below, \begin{equation} Fitness(\CS)= \begin{cases} 0.5 + 0.5 \cdot G(\CS) & if\ V(\CS)=0 \\ 0.5\cdot G(\CS)-\frac{V(\CS)}{V_{Tot}(\CS)} & ...
1
vote
1answer
247 views

Using \sqrt in the denominator of the \frac command [closed]

Below is the following code that I am trying to use in math mode. When I do this it distorts the sqrt line and blends into the fraction line. z=$\frac{ Estimate_{t} - Estimate_{t-1}} \sqrt{Var_{t} + ...
1
vote
1answer
500 views

Bold fraction line

I would like to use a "bold style" for the fraction line in a math formula. I've seen it in some PDFs, but I do not know the proper command.
1
vote
1answer
38 views

Sequential \frac that aren't nested [duplicate]

I'm new to Latex and am having trouble troubleshooting an equation that I can't get to display correctly. The equation I am trying to create in Latex is: ...but I keep getting nested fractions ...
1
vote
1answer
181 views

Ways to show fractions

As I use TexMaths in LibreOffice and it has a problem with \frac and \over; are there other ways to show fractions in Tex? In LibreOffice with \frac the line is not shown:
1
vote
2answers
44 views

Double subscript not coming with product in this formula

I am not able to write this in latex with the subscript p|n (maybe more than one line) under the product and above the product sign also I need something to be written( say k). Moreover it would be ...
1
vote
0answers
38 views

adjust vertical space between horizontal line of the radix in denominator and the horizontal line of the fraction [closed]

Even in display math I guess that there is too little space between the top horizontal line of the radix symbol and the horizontal line of a \frac. How can I control that vertical space? I have a ...
1
vote
0answers
122 views

Spacing of fractions in TeX Gyre Pagella Math [closed]

Using TeX Gyre Pagella Math with xelatex, some objects like \frac12 just seem way too large compared to the rest of the equations. Have a look: In the first line, the numerator looks like it's ...
1
vote
0answers
310 views

Slanted fractions

I'm trying to develop a command to typeset slanted fractions. I know about nicefrac and xfrac packages, have tried both, and disliked both. At the moment, in text mode I use \nicefrac with a bit of ...
1
vote
2answers
271 views

Problems with fractions in a square root [closed]

whenever i have a fraction inside a square root, the square root symbol drops down below the line and intercepts whatever is on the next line. I think the package savetrees may be causing the ...
1
vote
0answers
68 views

Token not allowed in a PDF string: hyperref warning affecting the bookmarks in the PDF [duplicate]

I have written a text in documentclass book and I have quite a lot of maths into subsections titles. These titles are of course correctly rendered in the pdf page but are not in the bookmarks: for ...
1
vote
1answer
121 views

How to avoid a continuous fraction line going through the equals sign in MathJaX? [closed]

When I use Math.SE, and I type a equation such as: I get this continuous line. Is there a way to avoid this?
1
vote
0answers
128 views

How to keep alignment consistent with non-LaTeX contents? [closed]

I am using "almost LaTeX" from the JetPack plugin for my WordPress blog where I post course work. How do I get the generated formulae to centre on the line so the equals sign lines up with the normal ...
0
votes
1answer
45 views

`\center` and size of `\frac` in my code

\documentclass[a4paper,12pt]{article} \usepackage{amsmath} \usepackage{fullpage} \usepackage{secdot} \usepackage{setspace} \setlength\parindent{0pt} \title{\vspace{-3em} Quantum Mechanics} ...
0
votes
1answer
233 views

Multline & Splitfrac

\documentclass{article} \usepackage{amsmath} \usepackage{mathtools} \begin{document} \begin{multline*} -\dfrac{1}{64\pi^2} \left[ \dfrac{ \splitfrac{ ...
0
votes
2answers
337 views

How to control the font size in complex fractions? [duplicate]

I am writing an equation and for part of that, I have the following fraction: \begin{eqnarray} \frac{u_{fe}\frac{\frac{u_{i,j,k}^n+u_{i,j,k}^{*}}{2}+ \frac{u_{i+1,j,k}^n+u_{i+1,j,k}^{*}}{2}}{2}- ...
0
votes
1answer
3k views

Using \frac within tabular [duplicate]

Possible Duplicate: Using \frac within a table I'm trying to do that within CodeCogs renderer, but it don't work: \begin{tabular}{cc} \hline \frac{x}{2} & \frac{2}{x} \\ \hline ...