webito | %18446744073709551615+1 I'm checking how many numbers can mbot accept % 18446744073709551615+1 |

mbot | webito: 18446744073709551616 |

zaphyBeeble | ye! mbot is back! |

TRWBW | webito: well maybe take it to /msg |

webito | ok |

newbie22 | i have a question i know how to solve kronecker product of two matrices A kron B but what if i want the kron of three matrices A kron B kron C does that make sense? can i take the kronecker of a and b then take the kroneker product of that? |

TRWBW | newbie22: yeah, it's associative |

newbie22 | TRWBW ah great thanks |

ktne | hello anyone here familiar with Mathematica? |

|Steve| | No, not a single person out of 243 in a math channel has ever used Mathematica. Ever. |

ktne | oh ok then |

TRWBW | ktne: some people are, but most won't talk about it in #math, it's not appropriate. |

ktne | well where can i ask a question? : :) |

|Steve| | It's not like we have a bot in channel that uses mathematica. @bot |

mbot | :) |

TRWBW | ktne: is your issue programming or actual mathematics, proofs, truth, etc.? |

ktne | i have a 2d probability distribution map (the sum of all map cells is 1.0), i need to get a random point within the map |

TRWBW | ktne: okay, pick a number 0..1 uniformly, then go cell by cell until the sum exceeds your random number. that's the one you want. |

ktne | hmm, isn't that slow? isn't there some builtin function? |

TRWBW | ktne: that's just not #math, but that's my opinion |

ktne | ok, is there a place where i can ask this? |

TRWBW | apparently not many people want to spend their time answering programming questions. can't blame them, neither do i. here's a hint, binary search. |

zaphyBeeble | should have a channel called #logic :) |

|Steve| | There is ##logic. |

zaphyBeeble | oh how come it didnt show up in my list |

|Steve| | ski is one of the ops. |

zaphyBeeble | cool! thanks steve! |

|Steve| | As is xerox. TRWBW: As I recall, you said you had little to no interest in point lattices, is that correct? (My memory has been known to be faulty.) |

TRWBW | |Steve|: i ate lunch in a basic seminar once, it covered minkowski theorem, that's all i remember |

|Steve| | Ah. lambda_1(L) <= sqrt(n)*det(L)^(1/n). |