Timeline for Is there another representation for the summation: $\sum_{j=1}^{N}\frac{a_j}{(c+a_j)(c+a_j+1)} $, how to reformulate that to keep $c$ out of the sum [closed]
Current License: CC BY-SA 4.0
23 events
| when toggle format | what | by | license | comment | |
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| Aug 16 at 12:50 | history | closed |
Dave Benson Daniele Tampieri user44191 Mikhail Katz Brian Hopkins |
Not suitable for this site | |
| Aug 14 at 11:04 | history | edited | LSpice | CC BY-SA 4.0 |
Typo in title; transcribed image
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| Aug 14 at 11:03 | comment | added | Pietro Majer | If the actual question was about solving the equation, it would be better to address it directly in the post. A closed form for the sum may not be relevant to study the equation. You may want to edit accordingly. In the meanwhile I wrote some answer/remark on the equation. | |
| Aug 14 at 11:02 | comment | added | LSpice | @DaveBenson, re, new users without an association bonus cannot include images. See meta.stackexchange.com/a/83099. (But of course the image could have been transcribed, which I have done.) | |
| Aug 14 at 11:00 | history | edited | LSpice | CC BY-SA 4.0 |
Typo in title
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| Aug 14 at 10:56 | answer | added | Pietro Majer | timeline score: 3 | |
| Aug 14 at 8:43 | comment | added | Pietro Majer | So the real question is solving the equation for $c$? | |
| Aug 14 at 8:36 | comment | added | Wireless Engineer | @PietroMajer, can you have a look on my question edited? Thank you. | |
| Aug 14 at 8:34 | comment | added | Wireless Engineer | Thanks @DaveBenson for the note, I tried to add a picture but it gets converted to a link. Please see my question edited, so you have an idea of what I am expecting. Thank you for any insight for this problem. | |
| Aug 14 at 8:32 | history | edited | Wireless Engineer | CC BY-SA 4.0 |
Why was the main problem .
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| Aug 14 at 8:31 | review | Close votes | |||
| Aug 16 at 12:50 | |||||
| Aug 14 at 8:26 | history | edited | Wireless Engineer | CC BY-SA 4.0 |
edited title
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| Aug 14 at 8:25 | history | edited | Wireless Engineer | CC BY-SA 4.0 |
edited title
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| S Aug 14 at 8:23 | history | suggested | Engineer | CC BY-SA 4.0 |
Explain more my goal
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| Aug 14 at 8:18 | review | Suggested edits | |||
| S Aug 14 at 8:23 | |||||
| Aug 14 at 8:11 | comment | added | Dave Benson | Given that you have $2N+1$ variables, I'm not sure what you're expecting here. Also, please note that you can embed images rather than linking. Finally, your title does not match your question. | |
| Aug 14 at 8:11 | comment | added | Carlo Beenakker | without knowledge of $a_n$ and $b_n$ there is no way to rewrite this sum. | |
| Aug 14 at 8:03 | history | edited | Wireless Engineer | CC BY-SA 4.0 |
added 23 characters in body
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| Aug 14 at 8:01 | history | edited | Wireless Engineer | CC BY-SA 4.0 |
Clarify what I meant by closed-form.
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| Aug 14 at 8:00 | comment | added | Wireless Engineer | Sorry, I mean without the summation, another representation. I will add a clarification in the mean post. Thank you. | |
| Aug 14 at 6:39 | comment | added | Loïc Teyssier | What exactly do you mean by a "closed-form" ? This sum is finite. | |
| S Aug 14 at 4:49 | review | First questions | |||
| Aug 14 at 5:31 | |||||
| S Aug 14 at 4:49 | history | asked | Wireless Engineer | CC BY-SA 4.0 |