{symbols} is about specific non-alphabetic symbols or math symbols, e.g., about looking-up, constructing, or using symbols. For questions about {fonts} or alphabetic {characters} use the respective tag instead.

learn more… | top users | synonyms (3)

10
votes
2answers
2k views

What font package do I use to get the vertical Russan/German style integral signs?

What font package do I use to get the vertical Russan/German style integral signs? (subject says all)
14
votes
3answers
2k views

Can I change the font and colour of a letter permanently?

For my lectures, I like to colour the symbols in the equations to make it easier to follow what's going on - a bit like syntax highlighting. So all vector spaces are one colour, all sets another, e ...
15
votes
3answers
4k views

Strategies for nice vectors

I'm investigating about possible strategies to get nice vectors, discarding bold fonts. To make it simple, I'm not very happy with traditional ways of writing vectors with arrows. Please compare ...
5
votes
1answer
3k views

Different switch symbols in circuitikz?

I'm wondering if there are other commands associated with the switch symbol so that one doesn't have to specify if the switch is open or closed. I would like the switch symbol with two connectors and ...
14
votes
1answer
7k views

How to typeset block matrices?

I need to typeset a block matrix that is made of a 2X2 structure of blocks such that the (1,1) block and the (2,2) blocks are zero and the (1,2) and the (2,1) blocks are non-zero (and happen to have a ...
4
votes
2answers
2k views

How do I get a proper mathematical \Lambda when using gfsneohellenic?

I am using the gfsneohellenic for my paper (which is in English). I load it using: \usepackage[LGR,T1]{fontenc} \usepackage[default]{gfsneohellenic} Everything works fine except for capital greek ...
18
votes
5answers
15k views

Why can I only use some capital greek letters inside my equations?

For example: \begin{equation} \delta % ok \Delta % ok \epsilon % ok \Epsilon % error \end{equation}
14
votes
2answers
535 views

Depth of the \times symbol

I just noticed an annoying discrepancy involving the \times symbol's depth. Read the below code and then try to guess what it should look like: \documentclass{article} \begin{document} \fbox{$A$} ...
8
votes
2answers
6k views

\chardef and underscore

Could you explain to me why a\_b {\ttfamily a\_b} \\ \chardef\_=`\_ a\_b {\ttfamily a\_b} produces ? I would like to have the short underscore in the normal text and the long one in ...
4
votes
2answers
734 views

\pounds in verdana is not working

This is the document: \documentclass{article} \renewcommand\familydefault{\sfdefault} \renewcommand\sfdefault{phv} \normalfont \begin{document} The jacket costs \pounds{}50. \end{document} I see a ...
22
votes
1answer
29k views

Mapsto vs. rightarrow

This is perhaps half a math question and half a typesetting one. In what circumstances do I use \mapsto and when \rightarrow? I feel like the standard seems to be: when you're specifying the operator ...
3
votes
4answers
6k views

small integral delimiter

while reading a book on maths lately, I have seen a small integral delimiter such that, in what follows: \begin{equation} \sum_i^j A_{ij}\int\limits_{-\infty}^{+\infty} \cos x dx \end{equation} ...
6
votes
2answers
1k views

Create my own mapping for XeTeX fonts

I'm trying to create mapping files, to make use of Cambria Math italic calligraphic and double stroke letters in Plain XeTeX. However, I'm unable to do so. This is what I tried to create for the ...
4
votes
2answers
602 views

How can I type the “EE” character?

I'm looking to type the "EE" character, the one that means "* 10^{x}" -- I'm trying to represent what might be typed on a Ti-84 calculator....
0
votes
1answer
3k views

Enhanced \oint to emphasize circulation

I'm looking for a symbol that merges \iint and \oint together (a dedicated package, if it could exist, would provide something like \oiint and \oiiint). The purpose of \oint is to show that the ...
16
votes
2answers
10k views

How to get a vertical bar which is longer than \mid ?

sometimes when writing mathematical expression with partial derivatives, one needs to write a vertical bar afterwards and write the value at the which the partial derivatives are being computed as ...
2
votes
1answer
863 views

Changing the kpfonts \sum symbol

I like the kpfonts package. It's a nice font and some of the extra symbols it defines are sometimes useful. But I do not like the \sum symbol either in displaystyle or inline. It's too thin and too ...
5
votes
1answer
856 views

How do I convert a character to a numeric value?

Now that I've gotten Will Robertson's excellent unicode-math package working to change the colour and style of letters in my mathematics (trust me, there is a reason) thanks to his answer to my ...
9
votes
4answers
572 views

Change the shape of a fraction

Is it possible to change the bar in a fraction to a different symbol? ie. \frac{x}{y} But instead of a straight line, I'd like to choose the delimiter to say \overbrace. I know I can get rid of the ...
3
votes
2answers
256 views

Typeset Re(a+ib)

How to typeset the "Re" of Re(a+ib) correctly inside an equation in latex? I tried using \mathcal and \mathbb but it does not give me the typical rounded R I already saw in other documents... Any ...
5
votes
1answer
2k views

How to make a command for a composed symbol to work with all font sizes?

In my paper I need a letter $\mathbb{R}$ with a small circle above it. Currently I'm using the following command: \newcommand{\obbR}{{\mbox{\kern1.4pt \raisebox{7pt} {\scriptsize$\circ$} ...
14
votes
1answer
7k views

How can I have a bigger integral (\int) delimiter?

I'm writing some integrals and I don't like the way the \int symbol is displayed when it is followed by a big delimiter. Here's the code: \[ \int_S\biggl(\nabla\times\bar B - \mu_0\bar J - ...
13
votes
4answers
2k views

Substituting character $l$ with $\ell$ throughout math mode

How do I overwrite the default $l$ character so that it is substituted by $\ell$ throughout math mode? (More generally, is there an easy way to make such symbol substitutions?)