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

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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 ...
3
votes
1answer
240 views

Use catcode for alternative way of writing fractions

Writing fractions using different syntax would sometimes be useful, instead of using \frac{ab}{cd}, I would prefer to write something like \frac{ab⌂cd} where the Unicode ⌂ is the }{. n.b., I don't ...
6
votes
1answer
186 views

Can't make a fraction

I had been tried for a long time, but it had worked, I have this code, hope you can help me: \documentclass{article} \usepackage{amsmath} \begin{document} \begin{pmatrix} m\\ n \end{pmatrix} = ...
5
votes
1answer
928 views

Aligned numerator and denominator in \frac or any other variant

Is there a way to align the numerator and the denominator of a fraction? Consider two fractions (from a SIAM paper) The denominator (k!) is nicely centred in the first fraction. However in the ...
3
votes
3answers
2k views

Changing fraction style in LaTeX as generated by Matlab

A= [0.7577 0.7060 0.8235 0.4387 0.4898 0.7431 0.0318 0.6948 0.3816 0.4456 0.3922 0.2769 0.3171 0.7655 0.6463 0.6555 0.0462 0.9502 0.7952 ...
2
votes
2answers
373 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} ...
10
votes
4answers
1k views

Align denominator of fraction to left

The highlighted part has the equation centred, which looks rather imbalance with the top equation, is it possible to align the highlighted part to the left? Below is the code I am using. ...
5
votes
1answer
238 views

Expanding line height when equations have displaystyle fractions

In my document, I have got a lot of equations in inline mode, like: \documentclass{article} \begin{document} Eu sit tincidunt incorrupte definitionem, vis mutat affert percipit cu, eirmod ...
3
votes
1answer
802 views

Fraction whose items are words

I have troubles writing a fraction whose items are words not numbers. In a nutshell I should write: minaccia/vulnerabilità --> this is the numerator ---------------------- contromisure ...
1
vote
1answer
198 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)} & ...
3
votes
2answers
342 views

Multiple horizontal line separators? Multiple \over-s?

How to code the syntax like fraction, but with more than 2 components? Fractions consist of numerator and denominator while I need more. In other words: how to code column-matrix with horizontal lines ...
3
votes
1answer
425 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 ...
6
votes
1answer
414 views

how to place text on fraction for accounting formulas?

Sorry for the bad grammar. English is not my native language. I want to have text on a fraction type line to show up in an accounting formula, here's an example of what I want: So, I've tried ...
19
votes
6answers
3k views

How to increase row height while using booktabs?

I'm making a table using booktabs. One of the columns contains a series of fractions. \documentclass[12pt, letterpaper]{article} \usepackage{nag} \usepackage[margin=1.0in]{geometry} ...
10
votes
3answers
739 views

How can you change the width of a fraction bar?

I have an equation using fractions of fractions - much like \frac{\frac{a}{b}}{\frac{c}{d}} However, all of the fraction bars are the same width. I'd like to make the central bar wider than the ...
4
votes
1answer
1k views

issues with fractions

I have: \usepackage{nicefrac } \begin{align*} &= \frac{2}{\sqrt{2y+1}\sqrt{2 \pi}} \exp \left( -y-\nicefrac{1}{2} \right) &&\forall y \in [-\frac{1}{2} , \infty) \\ &= ...
4
votes
3answers
133 views

Keep numerator inline with rest of equation

In the following example, I would like to to keep the Q''(p) on the same line as the rest of the equation, and put the vinculum and 2 underneath. \documentclass[12pt,reqno]{amsart} ...
1
vote
1answer
519 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.
9
votes
1answer
275 views

How to improve the looks of a fraction?

We may notice that the numerator and denominator in the following fraction are not aligned. And, to me it does not look good. How to align the numerator and denominator? \documentclass{article} ...
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, ...
54
votes
3answers
16k views

What is the difference between \over and \frac?

What is the difference between {some-expression}\over{another-expression} and \frac{some-expression}{another-expression} ? Which is preferable?
5
votes
1answer
2k views

How to make slash (/) paste with correct Unicode codepoint depending on context?

Unicode offers different characters for the slash: U+002F (/) for the ordinary slash U+2215 (∕) for the mathematical division operator U+2044 (⁄) to designate vulgar fractions How can I have these ...
11
votes
5answers
2k views

How to typeset a continued fraction in the following format?

How does one typeset the following continued fraction as shown below? Source: Notes on continued fractions and recurrence sequences by Alfred van der Poorten. Note: Alf van der Poorten's style is ...
1
vote
1answer
123 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?
8
votes
1answer
13k views

Vertical spacing between numerator and division symbol in \dfrac

How can I fix the vertical spacing between the numerator and the division symbol when entering fractions. Eg. in the following code, the spacing between a and the division symbol is greater than one ...
12
votes
1answer
5k views

displaystyle, dfrac, dcases

Am I correct in saying that the dcases environment replaces \frac with \dfrac? The replacement only occurs at the outer-most level of \frac, so if I have \documentclass{article} ...
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 ...
9
votes
2answers
499 views

How do I typeset continued fractions in Pringsheim's concise notation?

I would like to obtain the following formatting so as to write continued fractions in my equations without wasting vertical space. What I need is one command named \cFrac which writes one fraction ...
4
votes
1answer
2k views

\text{} in a fraction but spread over two lines

Rather than try to describe in words or by way of a MWE, I have uploaded a picture of the desired result. I know how to create all the components (e.g. \frac{}{} \text{}, ^{}) of this fraction, except ...
6
votes
1answer
224 views

About shorthand \frac

It is possible to write \frac 2 4 or \frac \pi 4 to get 2/4 and \pi/4, respectively. However, it is not possible to write \frac \sqrt{2} 2 to get \sqrt{2}/2. Are there consistent rules on how to ...
14
votes
1answer
1k views

Reformat \frac depending on numerator/denominator size difference

Is it possible to detect cases where the second argument of \frac is much smaller than the first argument, and split it? Namely (I'm using a new macro name \wfrac to simplify things), \wfrac{x}{2} % ...
8
votes
3answers
642 views

array within frac, using nath package

I use the nath package to get automatically-sized delimiters, but it breaks having a \begin{array}{…}…\end{array} within a \frac{}{} (simply removing the \usepackage{nath} below fixes the example, but ...
10
votes
5answers
7k views

Proper display of fractions

Have a look at the following code: \documentclass[letterpaper]{article} \usepackage{amsmath,amssymb} \begin{document} $2-\frac{2}{1-\left(\frac{2}{2-\frac{2}{x^2}}\right)}$\quad ...
3
votes
1answer
663 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!
17
votes
2answers
11k views

Smaller fractions in displayed formulae?

How do you make script-sized fractions in display mode? In certain cases, I find that \frac-based fractions are too large for my tastes in displayed formulae. For example, I feel that the fractions ...
4
votes
1answer
2k views

Fraction in Superscript

\documentclass[a4paper]{article} \usepackage{amsmath} \usepackage{fontspec} \setmainfont[Script=Devanagari]{Sanskrit 2003} \newcommand\sufr[2]{\textsuperscript{$\frac{#1}{#2}$}} \begin{document} ...
5
votes
2answers
209 views

how to lower last term in a continued fraction after a diagonal row of dots?

How can I lower the last term of a continued fraction when it follows a diagonal row of dots?
15
votes
3answers
664 views

How would you name these fraction macros?

I've got four macros now for typesetting fractions in text mode. The first writes them horizontally (shilling style, with a hyphen), the second writes them diagonally, the third writes them ...
38
votes
2answers
1k views

Improved kerning in fractions?

Question How can I apply selective kerning within the numerator and denominator of an inline fraction? Specifically, I'd like to: Tighten kerning after the numerator if it ends in 7 Loosen kerning ...
7
votes
1answer
346 views

How to add quotation marks to fractions?

As the title says I want to add quotation marks around a fraction in \displaystyle mode. My first try looks very unnatural, as you can see ^{``}\frac{1}{0^-}^" The problem is with the first ...
5
votes
1answer
494 views

How to automatically add parentheses around fractions?

Is there any way to make LaTeX automatically put parentheses around a \frac if it is followed by a superscript expression?
6
votes
3answers
697 views

Suggestions for splitting a large fractional equation?

I have seen a number of questions detailing specific means for how to break down a given equation, however I am more interested in the design at this point. That is, I'm not sure what part of this ...
4
votes
1answer
11k views

commath, \dfrac and \tfrac

I'm using the commath package for its nice \od and \pd functions, but I find it uses \tfrac internally. It seems to have an 'if-then' clause to sometimes use \dfrac but it never does so in my tests: ...
2
votes
2answers
197 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 ...
6
votes
3answers
486 views

Define my own xfrac command?

Is it possible to create my own xfrac command - without using that package (it is giving me too much trouble)? I know you can do superscript, subscript to make a fraction look. Can I do something ...
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 ...
11
votes
1answer
3k views

Annotating individual math terms with braces

I am trying to annotate individual terms of a mathematical expression, as depicted below. The problem I get is that the comment seems to be taken as part of the fraction, which unnecessarily extends ...
9
votes
5answers
2k views

too little space between the bar on the denominator and the horizontal line

Please see below: There is too little space between the horizontal line from \frac and the bar from \bar{h_1}. So, it is a little hard to read. Any alternative way to represent the upper bar? And, ...
7
votes
2answers
309 views

How to stop fractions in display equations from running into each other?

Is there some standard way to create multiple display equations like the following without having to use: \renewcommand*{\arraystretch}{2} (so that the two rows in the second equation don't get ...
5
votes
1answer
455 views

Converting text math to TeX math (e.g. automatically filling in \left(, \right), \frac, etc)

At some point, it occurred to me that another level of abstraction may be possible on top of LaTeX. For example, why should I type \left( \frac{\frac{a}{b + c} \frac{w + \lambda}{z}}{x\left[ ...