[Tex/LaTex] How to use more than 10 tab stops in bmatrix or other amsmath matrix environments


I'm using bmatrix environment from the amsmath package, and I'm trying to do something like this:


             1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11\\

However, pdfLaTeX returns an error: "Extra alignment tab has been changed to \cr", and in the output the extra element is moved to the next row. (If I remove one element, then it works perfectly fine). I guess this means that I've hit some hard limit on the number of tab stops in a matrix. Is there a way to change this?

The elements in the matrix are short and could fit perfectly on a single row.

Best Answer

Googling "10 columns" together with "tex" and "halign" lead me to this document, where it is explained that, e.g.,


enables you to use 20 columns.

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