2020-04-02 23:32:16 +0200 | received badge | ● Notable Question (source) |

2015-05-18 19:29:36 +0200 | received badge | ● Popular Question (source) |

2013-05-31 16:27:23 +0200 | commented answer | Difficulty solving some second order differential equations Thank you so much. I can finally get my work done :) Is there a specific reason that it does not work with symbolic operations |

2013-05-31 16:27:04 +0200 | answered a question | Difficulty solving some second order differential equations Thank you so much. I can finally get my work done :) Is there a specific reason that it does not work with symbolic operations |

2013-05-31 15:40:21 +0200 | received badge | ● Student (source) |

2013-05-31 15:26:04 +0200 | received badge | ● Scholar (source) |

2013-05-31 15:26:04 +0200 | marked best answer | Difficulty solving some second order differential equations Concerning your first issue, instead of the symbolic This approach also works for your second issue: Hence, you can check: Which looks correct. |

2013-05-31 15:26:03 +0200 | received badge | ● Supporter (source) |

2013-05-31 13:51:05 +0200 | asked a question | Difficulty solving some second order differential equations I have trouble finding 10% and 90% of the rise time in a second order differential equation. I have tried to search but i have not solved my issue, so now i ask here. I have added the code to aleph.sagemath.org however the link is crazy long so i put it in a short link: http://bit.utoft.org/138hfAz The code is also on pastebin http://pastebin.com/4hwdLJuT Please help :) Cheers J. Utoft |

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.