Timeline for An expression for the $k$-th derivative of $f(x)=x^n\exp(-x)$ [closed]
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| Aug 9, 2020 at 20:41 | history | closed |
Ben McKay David Handelman Carlo Beenakker LSpice Yemon Choi |
Not suitable for this site | |
| Aug 9, 2020 at 17:26 | comment | added | zeraoulia rafik | Have u tried to use Leibniz's formula? am affraid that is not a question for MO website ,MO website is not for standard questions but for question in high level of research | |
| Aug 9, 2020 at 15:15 | comment | added | LSpice | This is not research level, so it doesn't belong at MO. It could probably do well at MSE, although (a) I'd be surprised if it's not there already, and (b) as @DavidHandelman says, it's something for which you can at least gather experimental data (and show that you have done so before asking others to do it). | |
| Aug 9, 2020 at 14:57 | history | edited | user64494 | CC BY-SA 4.0 |
The text is improved.
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| Aug 9, 2020 at 14:57 | review | Close votes | |||
| Aug 9, 2020 at 20:41 | |||||
| Aug 9, 2020 at 14:55 | answer | added | user64494 | timeline score: 1 | |
| Aug 9, 2020 at 14:54 | comment | added | David Handelman | Have you tried differentiating a number of times, then guessing the pattern: e.g., $f^{(n)} = P_n (x)e^{-x}$, and working out the recursive condition on the polynomials $P_n$ (which depend on $N$ as well)? | |
| Aug 9, 2020 at 14:40 | history | edited | hichem hb | CC BY-SA 4.0 |
edited title
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| Aug 9, 2020 at 14:35 | history | asked | hichem hb | CC BY-SA 4.0 |