{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.

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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}
10
votes
2answers
14k views

How to type the three dots in a product?

I have to type the product of n variables, $x_1\cdot\ldots\cdot x_n$. Although maybe this is semantically the right way (like it is for the sum), it doesn't look very well. What should be, ...
3
votes
2answers
6k views

Why does the less than equal to symbol not appear as intended in the following code?

When I use the following code on stats.stackexchange.com (which is powered by MathJax) the \le does not render properly. Is this a bug in MathJax or am I not using the \le symbol properly? $X_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)
19
votes
3answers
4k views

Indian rupee symbol

India has recently introduced a new symbol for its currency, the Indian rupee -- see http://en.wikipedia.org/wiki/Indian_rupee_sign. How can I typeset this in TeX / LaTeX?
83
votes
5answers
58k views

Symbols instead of numbers as footnote markers

How can I make LaTeX use symbols (*, †, ‡, and so on) instead of numbers to mark footnotes? (The numbers are confusing because I use superscripted numbers for citations.)
18
votes
7answers
14k views

Average integral symbol

Is there in LaTeX a symbol or a macro for the average integral with a horizontal slash? I know about \strokedint, but I'd prefer the dash to be horizontal.
75
votes
2answers
13k views

How to get rid of navigation symbols in beamer?

When creating presentations in beamer, those little symbols that you can click on and will take you to different parts of your presentation are automatically included on your slides. I don't like ...
184
votes
10answers
312k views

How can I get bold math symbols?

To make Latin-letter variables bold I can use e.g. \mathbf{a}, but while putting Greek letters or symbols such as \nabla inside \mathbf doesn't cause any errors or warnings, it also doesn't do ...
43
votes
6answers
24k views

What is the best way to use quotation mark glyphs?

There are several types of quotation marks in the English language (and in other languages there are even more). There are also several ways in LaTeX to represent these. I have seen editors, that are ...
96
votes
4answers
81k views

\mid, | (vertical bar), \vert, \lvert, \rvert, \divides

What's the difference between the different vertical bars? $S = \{\, x \mid x \not= 17 \,\}$ $a \vert b$ implies $a \leq b$ when $b \ne 0$ $a|b$ implies $a \leq b$ when $b \ne 0$ $\lvert x \rvert$ is ...
8
votes
3answers
808 views

Glyph insertion

I use Linux and have available to me the "compose" key, and thus can type characters like '°', 'ß', 'ï', 'į', 'ḯ', etc. Is it inherently "bad" to use the compose key to insert the characters, should ...
4
votes
2answers
479 views

Does LaTeX support the sarcmark?

Does LaTeX have an escape sequence for the open source sarcmark?
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 ...
97
votes
8answers
46k views

Correctly typesetting a tilde

How do I set the tilde (~) character correctly in LaTeX? There’s a question discussing that on Stack Overflow, with a lot of answers. But dare I say it? They all suck: \textasciitilde is too high, ...
11
votes
1answer
3k views

Slashed symbols

In my field of work, mathematical operators that live on reduced dimensions are customarily defined as the normal one with a slash through it. For example, the gradient is usually written as \nabla, ...
80
votes
9answers
75k views

What's the best way to write e-mail addresses?

When trying to write an e-mail address, there are always problems with the @ sign. Solutions I've seen suggested are using some verbatim environment (more difficult in footnotes) and using a ...
8
votes
3answers
3k views

Using custom symbols

As comprehensive as the existing set of symbols is, it doesn't have every possible symbol that could exist, and it really takes the fun out of inventing a new symbol if you can't typeset it nicely. ...
375
votes
13answers
64k views

How to look up a symbol or identify a math symbol or character?

I know what my symbol or character looks like, but I don't know what the command is or which math alphabet it came from. How do I go about finding this out?
483
votes
9answers
707k views

How does one insert a backslash or a tilde (~) into LaTeX?

How does one insert a "\" (backslash) into the text of a LaTeX document? And how does one insert a "~" (tilde)? (If you insert \~, it will give you a tilde as an accent over the following letter.) ...