This tag is for questions regarding the display of fractions and related problems.
34
votes
2answers
649 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 ...
33
votes
3answers
3k 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?
26
votes
5answers
1k views
How do I typeset arbitrary fractions like the standard symbol for .5 = ½?
I know I've seen somewhere how to typeset 1/2 as ½, but with arbitrary fractions (that is, a macro that takes two arguments and makes the first denominator and the second numerator...). Now I can't ...
18
votes
6answers
549 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}
...
15
votes
3answers
468 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 ...
14
votes
1answer
490 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} % ...
13
votes
1answer
5k views
How to get a little frac
I am wondering how to make a fraction in LaTeX small enough to fit on a line, or at least just a little larger. I could have sworn I had seen this before but I just cannot find it.
In particular, I ...
11
votes
5answers
489 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 ...
11
votes
4answers
786 views
How to print \frac{1}{2} by a single Unicode character?
I am looking for a command which would print simple fractions like 1/2, 1/3 etc using glyphs available in modern TTF/OTF fonts. Ideally, I want this command to output ordinary \frac{1}{2}, \frac{1}{3} ...
9
votes
2answers
325 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 ...
9
votes
3answers
326 views
Nicer alignment of x^*/2
I'm trying to typeset $\frac{x^*}{2}$, but I can't find a (simple) way to make the alignment look nice. So far, I've tried the following:
\documentclass{article}
\begin{document}
\begin{equation}
...
9
votes
2answers
3k 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 ...
8
votes
5answers
386 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, ...
8
votes
4answers
1k views
Fraction with longer line
I'm trying to display some axioms and operational rules with LaTeX.
Those are basically . They work quite well when used with frac, but it's not really nice, I'd like the fraction line to be a bit ...
8
votes
4answers
234 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.
...
8
votes
5answers
3k views
How to properly subscript in a superscripted fraction?
the title says it all. It attached a MWE to display the different relative sizes of a subscript within a normal fraction and a superscripted fraction. As you can see, in the superscripted fraction the ...
8
votes
3answers
325 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 ...
8
votes
3answers
1k views
Legendre symbol in theory of numbers
How can I get a Legendre symbol
,
which just used the dashed line instead of the fractional rule?
8
votes
1answer
210 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}
...
7
votes
3answers
214 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 ...
7
votes
2answers
190 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 ...
7
votes
1answer
970 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 ...
7
votes
2answers
727 views
Please critique this “intermediate size” fraction macro.
I often write a lot of mathematics where I multiply various quantities/operators/etc. by fractions. The fractions are important for bookkeeping, but usually not the most important thing in the ...
6
votes
4answers
1k 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
...
6
votes
1answer
139 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} = ...
6
votes
3answers
373 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 ...
6
votes
1answer
187 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 ...
6
votes
1answer
162 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 ...
6
votes
1answer
289 views
Automatically add fractions and reduce the result (if neccessary)
I'm trying to figure out how to reduce fractions. Adding fractions is no problem, see this example:
\documentclass[parskip]{scrartcl}
\usepackage[margin=15mm]{geometry}
\usepackage{tikz}
...
6
votes
1answer
1k 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}
...
6
votes
1answer
264 views
Dashed draw with a node including a fraction
Is this intended behavior (with plain XeTeX):
\input tikz
\tikz\draw[dashed] node {$3T\over4$};
\bye
It renders as: !?
The fraction line is dashed, too! Is this intentional? Is there something I ...
5
votes
3answers
261 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 ...
5
votes
1answer
141 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 ...
5
votes
1answer
328 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?
5
votes
1answer
112 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
...
5
votes
2answers
152 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?
5
votes
1answer
372 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 ...
5
votes
1answer
247 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[ ...
5
votes
1answer
133 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 ...
4
votes
3answers
102 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}
...
4
votes
4answers
387 views
\frac{1-z^{n+1}}{1-z} doesn't look very good and how to leave space equal to the size of a given text
When we write it by hand we usually align the 1's in numerator and denominator. Should I change it manually, i.e. defining a command for typing the sum of the geometric progression or is there a ...
4
votes
1answer
566 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 ...
4
votes
1answer
84 views
Bracing fraction numerator or denominator to the left or right
I have a fraction with further fractions in both the numerator and denominator. I wish to label the fractions in the numerator and denominator with braces to the right. I would like these braces to ...
4
votes
1answer
158 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
1answer
456 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}
...
3
votes
2answers
476 views
3
votes
3answers
329 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 ...
3
votes
1answer
110 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 ...
3
votes
4answers
186 views
Subscripts in partial derivatives
I would like to print the partial derivative operator $\frac{\partial}{\partial k_x}$, but the spacing and the length of the bar bug me a little. I would really like the fraction to be typeset as ...
3
votes
1answer
114 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 ...
