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jeanluct / braidlab

Matlab package for analyzing data using braids
GNU General Public License v3.0
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pos/neg necessary? #65

Closed jeanluct closed 9 years ago

jeanluct commented 9 years ago

In writing the section in the braidlab guide, I realized that computing the "pattern of +/- operators" as a vector pn might not be useful. The problem is that it's a net gain for a small number of generators with many strings, but becomes inefficient with more generators. For cycles, why not look for periodic behavior of the matrix itself? Is there any benefit to the pattern of signs, other than recording the info on a generator-by-generator basis?

Think about this... if it turns out to be unnecessary then maybe at first just hide this info. mtimes would return the effective linear action, and cyclemat could be merged with cycle. That would be nice.

jeanluct commented 9 years ago

From Jean-Luc Thiffeault on 2014-09-27 09:37:39+00:00

We could drop linact, I think.

jeanluct commented 9 years ago

From Jean-Luc Thiffeault on 2014-09-28 00:03:36+00:00

Ok, turns out to be much nicer with this pos/neg business. I implemented the changes in 679-682. The biggest changes are in 73a21c9 and aa196d1.