2019-05-22 15:33:35 +0200 | commented answer | What does cohomology_generators actually do? Wow. Reading this bug report convinced me I shouldn't use sage. If even the developers think it's okay to have wrong functions with undocumented bugs... Thank god I didn't include the results in an article before knowing this. |

2019-05-22 09:32:05 +0200 | commented question | What does cohomology_generators actually do? The documentation is misleading then. It says explicitly (not "suggest") that the function it is finding a complement of the set of elements generated by lower-degree generators, as well as coboundaries. |

2019-05-21 18:38:46 +0200 | received badge | ● Student (source) |

2019-05-21 17:48:21 +0200 | asked a question | What does cohomology_generators actually do? I don't understand the output of the function "cohomology_generators" of commutative differential graded algebras. Look at this simple exmaple: It's apparently telling me that t, x and y are all generators of the cohomology algebra in degree 2. But in cohomology, x = y, since dz = x - y! |

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