2015-02-16 08:12:19 -0500 | received badge | ● Necromancer (source) |

2013-11-03 22:14:40 -0500 | received badge | ● Supporter (source) |

2011-11-10 05:36:58 -0500 | answered a question | Row echelon form of a matrix containing symbolic expresssions |

2011-10-13 07:35:59 -0500 | answered a question | Solve large system of linear equations over GF(2) Hi, 20,000 x 20,000 is not large and you should be able to do it in a few seconds on a modern CPU: However, Sage doesn't expose the fast code we have for this in M4RI:, cf. That's why it's not as fast as it should be. Sorry, we should fix this. |

2011-01-14 03:25:59 -0500 | received badge | ● Good Answer (source) |

2011-01-13 19:56:42 -0500 | received badge | ● Nice Answer (source) |

2011-01-13 18:40:40 -0500 | received badge | ● Teacher (source) |

2011-01-13 04:27:31 -0500 | answered a question | Quotient decomposition by Groebner basis Do you mean this? |