2017-05-20 11:54:00 -0500 | received badge | ● Nice Question (source) |

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2017-05-20 02:48:15 -0500 | asked a question | Solving returns x
There are other questions that appear to have the same problem, but honestly I don't understand the answers, and this is a much simpler equation. Why doesn't Sage solve it? I can do it in Maple and by hand in vanilla Python with the math module. |

2017-05-19 08:38:34 -0500 | commented answer | Problems with sage solve. I don't understand the answer. Could you be more explicit, please? I'm having a similar problem: sage: f=4.94 * 1.062^x sage: solve(f(x) == 15, x) [531^x == 750/247*500^x] |

2017-05-19 08:37:59 -0500 | answered a question | Problems with sage solve. I don't understand the answer. Could you be more explicit, please? I'm having a similar problem: sage: f=4.94 * 1.062^x sage: solve(f(x) == 15, x) [531^x == 750/247*500^x] |

2017-05-01 11:00:18 -0500 | received badge | ● Editor (source) |

2017-05-01 10:59:12 -0500 | asked a question | Finding a p-value in goodness of fit test I'm trying to find the p-value in a goodness of fit test comparing a set of observed values to a set of expected values. In Maple I can do it with There's a function The sets for reference are |

2017-04-28 06:58:17 -0500 | commented answer | Problem recreating example of normal distribution from TI-Nspire I'll have to read up on that. Thank you for the reference. |

2017-04-28 04:25:59 -0500 | received badge | ● Scholar (source) |

2017-04-27 13:16:36 -0500 | asked a question | Problem recreating example of normal distribution from TI-Nspire I have to recreate this formula for calculating normal distribution in Sage: http ://ntaj.dreamhosters.com/ti.jpg The picture is from TI-Nspire CAS. What I'm doing is: sage: f=1/(0.1 sage: float(integral(f, 3.9, 4.1)) 0.8696735925295498 I can't get the expected result 0.682689 that Nspire gives. Can anyone see why? |

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