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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).

Postby alpha on Wed Sep 16th, 2009

Hello!

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

\usepackage{amsmath}
\begin{equation}
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}
\end{equation}

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
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alpha
 
Posts: 5
Joined: Tue Aug 11th, 2009

Postby Stefan_K on Wed Sep 16th, 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
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Postby alpha on Wed Sep 16th, 2009

@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 !
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Posts: 5
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