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## Problem with creating a matrix

### LaTeX Forum: Math & Science

Add tags Information and discussion about LaTeX's math and science related features (e.g. formulas, graphs).
Hello!

I want to create a matrix having one row and multiple columns. I am doing it as follows:

\usepackage{amsmath}

y(k)=
\begin{bmatrix}
a_{0}&a_{1}&a_{2}&b_{1}&b_{2}&c_{1}&c_{2}&d_{1}&d_{2}&e_{1}&e{2}
\end{bmatrix}

I am getting the error:

! Extra alignment tab has been changed to \cr.

The matrix currently has 11 columns. If I reduce the columns to 10, the error does not appear.

What can be the reason for this?

Thanks in advance
If we do not care about the environment now, it is going to be too late too soon !
(What you do not know about Pakistan http://www.pakpositive.com)
alpha

Posts: 5
Joined: Tue Aug 11th, 2009

Hi,

the reason is that amsmath uses 10 array columns internally. You could adjust that by setting the counter MaxMatrixCols:
Code: Select all  •  Open in writeLaTeX
\setcounter{MaxMatrixCols}{11}

Stefan
LaTeX Community Administrator

Stefan_K
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Posts: 7243
Joined: Mon Mar 10th, 2008
Location: Hamburg, Germany

@Stefan_K!

Thank you very much! You saved my day!
If we do not care about the environment now, it is going to be too late too soon !
(What you do not know about Pakistan http://www.pakpositive.com)
alpha

Posts: 5
Joined: Tue Aug 11th, 2009

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