3
votes
1answer
85 views

Eqnarray nested matrices produces alignment error

I wrote the following equation array. \begin{eqnarray} w_{0} & < & 1 \\ w^{m}_{i} & = & \left \{ \begin{matrix} w_{0} & i = 0 \\ ...
1
vote
0answers
46 views

Matrix creating “missing \item” error [closed]

I don't even have an enumerate nor an itemize in my document, but I'm getting a message that says "! LaTeX Error: Something's wrong--perhaps a missing \item." I've searched here and elsewhere, and ...
4
votes
1answer
320 views

Problem with \cdashline and package arydshln

I have a problem with \cdashline. I use the \cdashline in a matrix but I have an error with \usepackage{arydshln} I think: ! Use of \x doesn't match its definition. \LT@array ->\adl@arrayinit ...
0
votes
0answers
25 views

Weird pmatrix error [duplicate]

Possible Duplicate: How to create a matrix with 20 columns in latex I am trying to present a matrix with the following code: $$ B_{1}=\begin{pmatrix} ...
8
votes
2answers
16k views

Misplaced alignment tab character when building a matrix

I'm still new to latex. I've been having a problem with building a matrix and I have no idea what I'm doing (or what I'm doing wrong), so be gentle please :) \begin{matrix} 5 & 6 & 7 \\ 4 ...
3
votes
2answers
1k views

Weird error with xymatrix and pmatrix.

Please look at the following minimal example: \documentclass{article} \usepackage[all]{xy} \begin{document} \( \xymatrix{ \begin{pmatrix} 1 & 1\end{pmatrix} } \) \end{document} The output I get ...