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Do I really have to hack around it?

And is that the space which corresponds to the space in the environments in amsmath?

Yes, but not with an array (because the between-line spacing is different for an array and, say, align - stick a \dfrac both lines in the same cell and they're too close).

Hi all,

Let's just say I want to typeset, ASCII-art style:


0 < a < b < 1
1 < a+1 < b+1 < 2


Where the alignments are on the < characters and the contents a, b, a+1 and b+1 are centred in their "cells", but 0, 1, 1 and 2 are right- or left-aligned as if they were the standard align environment ...

That works, thanks.

Just out curiosity, could I know:

- What \relax does?
- Any sort of documentation on \if, \ifx, \else, \fi and so on?

Probably because they're such common terms, I can't find anything explaining how to get conditionals to work.

I have the following bit of code:

\DeclareMathOperator{\fisherInformationOp}{\operatorname{I}}
\newcommand{\I}[2][]{\fisherInformationOp_#1\left(#2\right)}

The idea being that sometimes ...

Is the correct syntax to use align with some annotations as follows?

\begin{align*}
A\land B &= B\land A & \text{commutativity}\\
&= X & \text{as defined above}
\end{align*}

The reason I ask is because the annotations (commutativity, as defined above) don't right-align to the page, almost ...

Hi all,

I'm trying to put mathematical symbols in a Verbatim environment:

%& -shell-escape

\documentclass[a4paper]{article}

\usepackage{fancyvrb}

\begin{document}
\begin{Verbatim}[commandchars=\\\{\},
codes={\catcode‘$=3\catcode‘^=7}]
x=1/sqrt(z**2) ! $\frac{1}{\sqrt{z^2}}$
\end{Verbatim}
\end ...

Does anyone know how to do matrices but a bit more?

Of course it's a little bit hard without any code, but consider the matrix:


1 2 2 2 2 2
2 1 2 2 2 2
2 2 1 2 2 2
2 2 2 1 2 2
2 2 2 2 1 2
2 2 2 2 2 1


I'd like to be able to do something like put 1s on the diagonal and then put a big "2" in the ...

Hi all,

How would I go about removing chapter numbering in a book document class?

i.e.
Would give Baz section number 1.1.1. and Qux section number 1.1.2. How would I get it to display as 1.1. and 1.2. respectively?

Genius! I've never used those functions before, and I'm guessing they're used in case \footnote doesn't work?