Elmar Peise submitted the
drawmatrix
package.
Version number: 1.1.0 2015-11-26 License type: other-free
Summary description: Draw visual representations of matrices in LaTeX
Announcement text: ----------------------------------------------------------------------
drawmatrix provides macros to visually represent matrices. Various options allow to change the visualizations, e.g., drawing rectangular, triangular, or banded matrices.
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This package is located at http://mirror.ctan.org/macros/latex/contrib/drawmatrix
More information is at http://www.ctan.org/pkg/drawmatrix
We are supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .
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Thanks for the upload.
For the CTAN Team Manfred Lotz