Timeline for Solving an Integral Numerically
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
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| Feb 24, 2014 at 7:46 | comment | added | Pankaj Sejwal | well one can help you if you paste your tried code by editing your question but I would suggest you take a look at @ubpdqn's answer as well. Otherwise put your code here. | |
| Feb 24, 2014 at 6:51 | comment | added | user12553 | @Rorschach, I have tried it in 9 and got the same answer as yours. But when I tried plotting the answer for some values of Q,N, k1,k2,x and {t,0,1), I got an empty graph. | |
| Feb 23, 2014 at 13:46 | comment | added | Pankaj Sejwal |
@RahulNarain : Actually OP has problem with integration, there are many problems other than that like definition of function a[t] etc. But its just a check and actually not working for version 8 but for 9.
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| Feb 23, 2014 at 12:57 | comment | added | user484 |
I'm pretty sure that exp(...) should be Exp[...] instead.
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| Feb 23, 2014 at 8:24 | comment | added | user12553 | Ok, thanks a lot @Rorchach. I will check it out in 9 | |
| Feb 23, 2014 at 7:27 | comment | added | Pankaj Sejwal |
mine is version 9. With version 8 I get -0.0056121 dt exp k1 Q x^2 \[Integral]1/( k2 t (N t)^(3/2) - 0.0056121 exp Q x^2) \[DifferentialD]t
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| Feb 23, 2014 at 7:22 | comment | added | user12553 | Please are you using Mathematica 8 or Mathematica 9? cos I am using Mathematica 8 version | |
| Feb 23, 2014 at 7:15 | comment | added | Pankaj Sejwal | could be version mismatch or some subtle issue. I am getting what I have written. | |
| Feb 23, 2014 at 7:07 | comment | added | user12553 | Thanks a lot. I applied: Integrate[ Simplify[-((dt exp k1 Q x^2)/(32 N [Pi]^(3/2) t (N t)^(3/ 2) (k2 - (exp Q x^2)/(32 N [Pi]^(3/2) t (N t)^(3/2)))))], t] and got the answer ->dt exp k1 Q x^2 [Integral]1/(-32 k2 [Pi]^(3/2) (N t)^(5/2) + exp Q x^2) [DifferentialD]t this doesn't give the same answer as yours, I dont know why | |
| Feb 23, 2014 at 6:27 | history | answered | Pankaj Sejwal | CC BY-SA 3.0 |