2021-01-03 04:14:10 +0100 | commented answer | Simplify expression with root Great! Thanks a lot! |

2021-01-03 04:13:48 +0100 | commented answer | Integrate() Error Great! Thanks a lot! |

2020-12-25 01:02:18 +0100 | received badge | ● Student (source) |

2020-12-25 00:59:40 +0100 | asked a question | Integrate() Error For: SageMath version 9.0, Release Date: 2020-01-01 When integrating this: Output: I get -17 ?! If I just replace sin(2 Output: This last value is the correct one. Simplifying this expression (which I don't know how to do in Sage), you have: It seems like the first result, wrongly reporting -17, somehow is missing the 12*sqrt(2) part of it. |

2020-12-25 00:59:40 +0100 | asked a question | Simplify expression with root The result of some integral, computed using integrate(), is: However, when I do the integral "by hand" I get Numerically both results are the same, but the first result is a lot more complicated. Multiplying separately the numerator and denominator of the first expression by (408*sqrt(2) + 577) brings the correct result. What can I do to simplify the first expression and get something really simple, as the second one? Thanks in advance! |

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