4
votes
1answer
43 views

Serious problem with \widebar

I met across a serious problem using the widebar math command defined by Hendrik Vogt as an answer to question 16337. It worked fine until I used \(wide)hat in its argument. Here is a M(non)WE: ...
4
votes
1answer
44 views

\hslash with other letter

I would like to know how to make a character like \hslash, but with a 'd' instead of an 'h'. I know that \hbar is defined using \mathchar'26, might there be a similar character for the slash in ...
2
votes
1answer
69 views

How can I write the number set of positive rationals in LaTeX2e?

How to write this in latex2e, the set of all rational numbers.
4
votes
2answers
97 views

Designing medcirc and circledtimes symbols

It would be great to use only \medcirc and \circledtimes from the pxfonts or to design the similar symbols by other techniques. The symbols from pxfonts are quite well but when I connect the ...
2
votes
3answers
88 views

How to type dots whose slope is 1? [duplicate]

We know how to typeset the commonly used diagonal dots, i.e., \ddots, whose slope is -1. Now I want to produce dots with slope 1, which is perpendicular to \ddots. Does anyone know how to do it?
2
votes
0answers
134 views

Undefined control sequence \nmid [duplicate]

I need to express that "a is not divisible by b" in my LaTeX document. It is my understanding that I should use the \nmid symbol for this case, as in $b \nmid a$. LaTeX gives me the following error: ...
2
votes
3answers
177 views

Defining operator symbols

I want to replace the circle in the symbol \circledast by a square. But i did not find the right command. It seems that the packages stmaryrd would help. But the package usually re-defines other basic ...
1
vote
0answers
53 views

\lesssim (and some others) not working [duplicate]

I'm writing a latex document and trying to use \lesssim (listed for example in here: http://en.wikipedia.org/wiki/Help:Displaying_a_formula#Relations ) in the text like this: $a \lesssim b$. However, ...
2
votes
1answer
456 views

Is a cupdot symbol available in amsmath? [duplicate]

I'm looking for a command in amsmath that makes something like \cupdot in MnSymbol (I hope spell it right...). Look at the picture below: i.e. a command that puts a dot instead of the "+". One ...
3
votes
4answers
261 views

How to create subset with sim symbol

I've been trying to typeset as an operator the symbol ⫇ (\subset on top a \sim), but the following solutions have not been helpful ⫇ does not seem to be listed in symbols-a4.pdf, so detexify does ...
11
votes
1answer
564 views

stmaryrd and boldsymbol: avoid warnings

Here are two examples: 1 \documentclass[a4paper,10pt]{article} \usepackage{amsmath} \begin{document} $\boldsymbol x$ \end{document} 2 \documentclass[a4paper,10pt]{article} ...
6
votes
1answer
2k views

Checkmark error in amsmath [duplicate]

This page says that amsmath supports the \checkmark symbol. However, when I try to implement this \documentclass[12pt]{article} \usepackage{amsmath} \begin{document} $\checkmark$ \end{document} ...
10
votes
1answer
495 views

How can I make an overset symbol at the same size and height as \bar except with a different symbol?

Apologies for the cryptic title, but I was not sure how best to phrase the question in one sentence. I am essentially trying the create a vector symbol with \rightharpoonup as the top instead of the ...
10
votes
1answer
645 views

Move QED symbol to the left, i.e. at the end of the sentence

I want to make the qed symbol at the end of a proof appear at the end of the last sentence, not at the far right of the same line. Would like to do this the simplest way possible. All I can find ...
11
votes
4answers
1k views

'Nudging' overset characters downwards

I am trying to make a vector-like symbol to use in a paper I'm writing. I am actually able to make almost exactly what I want in Mathematica, in which it looks like this: In TeX I am using ...
6
votes
2answers
564 views

Setting two math symbols directly above each other and vertically aligned

I am typesetting the Neyman Pearson decision rule and would like to set the greater than > and smaller than < symbols directly above each other. I tried \overset but that doesn't align the ...
4
votes
2answers
334 views

Creating a \precneq symbol

Going through the comprehensive symbols list, and also Detexify, we see that through various packages (mostly amssymb) we can get the symbols \prec Precedes. Unicode U+227A: ≺ \preceq Precedes or ...
6
votes
1answer
716 views

Using \leftroot{}, \uproot{} with closed square root symbol

As mentioned in this answer to Nice-looking p-th roots the amsmath package provides \leftroot{} and \uproot{} which allow you to move the position of the root to the left, and up in small increments. ...
9
votes
1answer
5k views

\hbar new letter

I would want to know in which package the symbol \hbar is defined. In fact I ask this because I need to create a letter like \hbar but with 'k' instead of 'h'.
14
votes
4answers
1k views

Underbrace under sqrt content

I am trying to use underbrace to clarify the arguments to a sqrt. However this causes the square root sign to reach all the way down to the bottom of the text under the brace(s), which is not what I ...
4
votes
4answers
619 views

Tagging equations with three \ast

I want to tag some equations with \ast, for \ast and \ast \ast it's good, but for the third I would like to have the three \ast placed like in a triangle, so two \ast at the bottom and the third in ...
1
vote
1answer
8k views

Any reason why \blacksquare and \box are causing errors?

I am using the amsmath package. I just want a black box at the end of a proof, right-justified. \blacksquare and \box both cause errors. Actually, I'd prefer a musical quarter note if that's ...
3
votes
1answer
7k views

Best way to typeset the identity operator, or unit? [duplicate]

Possible Duplicate: Blackboard bold characters I have seen the unit (or identity operator) typeset via \newcommand{\unit}{1\!\!1} Is this really the best way to get a double-stroke 1? ...
4
votes
2answers
2k views

Extendible \cong congruence sign

This question is very similar to Extendible equals sign but the solutions given there do not apply immediately. At times I woud like to clarify the nature of a mathematical congruence. So I have ...
16
votes
1answer
4k views

\varnothing 'undefined control sequence'

I am using amsmath and all of my math symbols are appearing using $ $ block but \varnothing is undefined. \emptyset works but its symbol is a bit different than \varnothing Note: images taken from ...
2
votes
3answers
5k views

String/vector concatenation symbol

I'm looking for a math symbol to represent the concatenation of two vectors: if x = (x1, x2) and y = (y1, y2) then x ? y = (x1, x2, y1, y2). I'm not very much at home in vector calculus, so I don't ...
8
votes
1answer
2k views

Minimum length for \xrightarrow

I want to place text over arrows. The obvious choice is to use the amsmath command \xrightarrow{#1} However, sometimes the text above may be a single digit: %Example 1 \xrightarrow{1} other times ...
14
votes
1answer
16k views

Text over/under implies arrow?

I'm currently trying to write over/under an implies arrow in LaTeX (in math mode): \implies_{text} This places the text lower, but next to the arrow, not below it. How can I get it below the ...
14
votes
2answers
2k views

Extendible equals sign

I have a command that has been floating around in my standard preamble for a while: \newcommand{\xeq}[1]{\stackrel{\;#1}{\cleaders\hbox{=\!}\hfill}\:} It is meant to mimic the AMS-LaTeX extendible ...
23
votes
6answers
20k views

Mathematical symbol for disjoint set union

In our lecture script, we use the notion of disjoint set union. It uses a special symbol to differentiate the disjoint from the usual set union, where we add an extra dot inside of the \cup symbol. Is ...
0
votes
1answer
2k 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 ...