This tag is for questions regarding the display of fractions and related problems.
3
votes
1answer
61 views
Underlining fractions
I need to be able to underline equations involving fractions, which are aligned using the alignedat environment from amsmath. To be able to underline at all, I'm using the solution from this question ...
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 ...
2
votes
2answers
155 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
3answers
79 views
Text-mode in fractions?
I want to have written words in a fraction but to have them in correct fraction form and not crude-looking. So, I have;
$\displaystyle\frac{Actual Value of Production}{Demand}$ x $100$
But it ...
2
votes
1answer
159 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/.
%% ...
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 ...
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}
...
3
votes
4answers
185 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 ...
8
votes
3answers
324 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 ...
1
vote
2answers
135 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 ...
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 ...
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} = ...
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 ...
3
votes
3answers
328 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 ...
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?
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 ...
2
votes
2answers
145 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}
...
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.
...
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 ...
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 ...
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
...
1
vote
1answer
105 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
133 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 ...
2
votes
1answer
137 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 ...
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} % ...
18
votes
6answers
547 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}
...
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 ...
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 ...
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 ...
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
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}
...
1
vote
1answer
139 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.
5
votes
1answer
370 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 ...
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}
...
2
votes
0answers
125 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, ...
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 ...
1
vote
1answer
72 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?
3
votes
1answer
389 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 ...
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}
...
1
vote
1answer
758 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 ...
11
votes
4answers
785 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} ...
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 ...
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
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
...
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?
2
votes
1answer
248 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!
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 ...
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 ...
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}
...
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?
