Hood Chatham submitted the

spectralsequences

package.

Version number: 1.0 License type: lppl

Summary description: Print spectral sequence diagrams using PGF/TikZ

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The spectralsequences package is a specialized tool built on top of pgf/tikz for drawing spectral sequences. It provides a powerful, concise syntax for specifying the data of a spectral sequence, and then allows the user to print various pages of spectral sequence, automatically choosing which subset of the classes, differentials, and structure lines to display on each page. It also handles most of the details of the layout. At the same time, spectralsequences is extremely flexible. It is closely integrated with tikz to ensure that users can take advantage of as much as possible of its expressive power. It is possible to turn off most of the automated layout features and draw replacements using tikz commands. Spectralsequences also has a carefully designed error reporting system intended to ensure that it is as clear as possible what is going wrong.

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This package is located at http://mirror.ctan.org/graphics/pgf/contrib/spectralsequences

More information is at http://www.ctan.org/pkg/spectralsequences

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Thanks for the upload.

For the CTAN Team Manfred Lotz

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