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2012-05-02 16:29:53 +0200 | answered a question | Integrate() does not integrate I have the Solution (partly) The function was wrong, it came up because i wrecked it with a faulty transformation. However I was able to do the first Step of integration with the "faulty" function. IN: OUT: IN: BItrick2 = When I try to go on sage says it doent know wheather cos(phi) ist positive or negative. So i divided the integral. Sage does calculate for 2 minutes and then it gives me the input. The system is unable to integrate. If you have problems with Integrations try using assume() and forget() Thank you for your Help. |
2012-05-02 05:04:56 +0200 | commented answer | Integrate() does not integrate numerical calculation over simsons rule may be usefull in some cases, thanks. If you want to do this in SAGE you jus need to (i think) taylor-approximate the function and have an easy life with Integration. I will remeber that when i dont need symbolics. |
2012-05-02 04:00:00 +0200 | commented question | Integrate() does not integrate I want to do things symbolic. When i did it in maple yesterday, it gave me nonsense. If even $$$ got Problems with such an equation, maybe it should be an feature request. Unfortuantly iam just a student of mechanical engineering, so i cant jugdge this situation. (Is it my fault or the CAS's, i suspect mine) I,however, can do it with my own sweat and tears. Thank you so far. UPDATE: Wolfram Mathematica semms to be unable to do it (at least when you go the simple way and just tell it to Integrate) |
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2012-05-01 15:42:17 +0200 | asked a question | Integrate() does not integrate Good Evening When I ask sage: the result is: I've found no way to make sage integrate the expresion. It repeats my input and iam not given any new information. When i try i get Same Problem with indefinite Integrals in: out: Why? what do I need to do to get the desired output? |