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 Showing results 1 to 25 of 1000 Search took 0.17 seconds. Search: Posts Made By: a1call
 2021-09-17, 21:37 Replies: 5 Views: 143 Posted By a1call Apologies for spamming the mods. I think I... Apologies for spamming the mods. I think I finally understand that in any other base only 11 (in that base) can be an even-numbered-digits-counted prime. Generally any prime p will equal 11 in base...
 2021-09-17, 17:32 Replies: 5 Views: 143 Posted By a1call I learned this from ScienceMan. I wonder what... I learned this from ScienceMan. I wonder what ever happned to him. In Pari-gp %4 = 1234567
 Forum: Lounge 2021-09-17, 16:19 Replies: 1,465 Views: 148,740 Posted By a1call That is kind of like saying: It's a losing battle... That is kind of like saying: It's a losing battle anyway, why prolong the misery when we are all going to die sooner or later? In that regards being 97 or 7 makes no difference. However we have a...
 Forum: Lounge 2021-09-16, 23:28 Replies: 1,465 Views: 148,740 Posted By a1call COVID-19 has now killed 1 in 500 Americans ... COVID-19 has now killed 1 in 500 Americans https://www.popsci.com/health/one-in-500-americans-dead-from-covid/ Hard to grasp the enormous pain and suffering of the souls who have perished....
 Forum: Puzzles 2021-09-06, 17:31 Replies: 58 Views: 1,475 Posted By a1call I think her name is Wilma. As for the pleasant... I think her name is Wilma. As for the pleasant evening, I wouldn’t count on that. He is probably cooking up a new scheme with Barney Rubble which will eventually get him into trouble. :smile:
 Forum: Puzzles 2021-09-05, 18:52 Replies: 58 Views: 1,475 Posted By a1call If I understand correctly, you are describing a... If I understand correctly, you are describing a square base (area = 1 units square) with a free-formed dome (area = 2 units square). A sphere is the most optimum general minimized surface, but it has...
 Forum: Puzzles 2021-09-05, 01:28 Replies: 58 Views: 1,475 Posted By a1call Well, I could probably write a PARI-GP code to do... Well, I could probably write a PARI-GP code to do the same. But for me CAD is the Path-of Least-Resistance. If you have something else in mind, then you are better in geometry than I am. ETA It...
 Forum: Puzzles 2021-09-05, 00:23 Replies: 58 Views: 1,475 Posted By a1call SolidWorks files are not valid for upload so they... SolidWorks files are not valid for upload so they were zipped. :smile:
 Forum: Puzzles 2021-09-05, 00:11 Replies: 58 Views: 1,475 Posted By a1call So, I finally had some spare time for this. ... So, I finally had some spare time for this. FWIW: The optimum distance between the 2 circles should be less than 1/2 meter away from 66.5 m. I will attach the SolidWorks files next. :smile:
 Forum: Puzzles 2021-09-01, 14:42 Replies: 58 Views: 1,475 Posted By a1call FTR, FWIW, I won’t be able to put any time on... FTR, FWIW, I won’t be able to put any time on this puzzle before the weekend. It should be easy to verify things with a parametric CAD model. If possible I will attach a file and folks can verify...
 Forum: Puzzles 2021-09-01, 01:41 Replies: 58 Views: 1,475 Posted By a1call There seems to be similarities to the Trammel of... There seems to be similarities to the Trammel of Archimedes dating back to at least 5th century: The Sofa with hinged armrests. https://en.wikipedia.org/wiki/Trammel_of_Archimedes ...
 Forum: Puzzles 2021-08-30, 22:26 Replies: 58 Views: 1,475 Posted By a1call Attached is the maximization-optimum I get using... Attached is the maximization-optimum I get using CAD and successive approximation to more than 1 m resolution. :smile:
 Forum: Miscellaneous Math 2021-08-29, 18:29 Replies: 21 Views: 871 Posted By a1call FWIW, for odd positive integers a, b & n = a*b,... FWIW, for odd positive integers a, b & n = a*b, there are relationships between the factors of n-1 and factors of n which can be used to make the solution-space for factors of n smaller. However this...
 Forum: Puzzles 2021-08-29, 06:56 Replies: 58 Views: 1,475 Posted By a1call That is cool Matt. The fence being on only 3... That is cool Matt. The fence being on only 3 sides, somehow changes the expected maximization (if it were on all 4 sides) at a square configuration to a rectangular one. I haven't quite got my...
 Forum: Miscellaneous Math 2021-08-21, 01:52 Replies: 45 Views: 2,078 Posted By a1call Ok, to elaborate further: * The infinite... Ok, to elaborate further: * The infinite series sum: sum_(n=1)^∞ (1/a)^n converges for all real numbers a such that a>1 ...
 Forum: Miscellaneous Math 2021-08-20, 23:24 Replies: 45 Views: 2,078 Posted By a1call Well, from that we could jump to ... Well, from that we could jump to sum_(n=1)^∞ (a/(a+1))^n = a https://www.wolframalpha.com/input/?i=sum_%28n%3D1%29%5E%E2%88%9E+%28a%2F%28a%2B1%29%29%5En and 1/x=a/(a+1) solve for x => x...
 Forum: Miscellaneous Math 2021-08-20, 22:54 Replies: 45 Views: 2,078 Posted By a1call Yes, you are correct. I erred as usual in... Yes, you are correct. I erred as usual in entering the formula: https://www.wolframalpha.com/input/?i=series+1%2F%281.1%29%5En+converges
 Forum: Miscellaneous Math 2021-08-20, 22:45 Replies: 45 Views: 2,078 Posted By a1call sum_(n=1)^∞ 1.1^n diverges to ∞ ... sum_(n=1)^∞ 1.1^n diverges to ∞ https://www.wolframalpha.com/input/?i=series+%281.1%29%5En+converges
 Forum: Miscellaneous Math 2021-08-20, 21:54 Replies: 45 Views: 2,078 Posted By a1call I have no way of proving any of the following, so... I have no way of proving any of the following, so I state them as virtual (as opposed to literal) wagers: * There are infinite Mersenne primes * The sum of the reciprocals of...
 Forum: Puzzles 2021-08-09, 02:56 Replies: 13 Views: 772 Posted By a1call 15 Notable People Who Dropped Out of School ... 15 Notable People Who Dropped Out of School https://people.howstuffworks.com/15-notable-people-who-dropped-out-of-school.htm
 Forum: Linux 2021-08-06, 22:28 Replies: 8 Views: 708 Posted By a1call The way I understood the idea, is to use a cell... The way I understood the idea, is to use a cell phone as a hotspot wifi to route cellular data to multiple wifi clients. In my neck of the woods, there are no issues (technically or contractually)...
 Forum: Hardware 2021-07-31, 04:52 Replies: 18 Views: 1,316 Posted By a1call I googled: whynotwin11 malware The site... I googled: whynotwin11 malware The site www. joesandbox. com reports it as Malicious: Here is a closed GitHub discussion regarding false ownership: ...
 Forum: Hardware 2021-07-30, 22:38 Replies: 18 Views: 1,316 Posted By a1call Well, the thing is I did not have a warning the... Well, the thing is I did not have a warning the 1st time I ran the program (Or at least I can't remember to). There are not any other complaints indexed by google anywhere so far. The attachment is...
 Forum: Hardware 2021-07-30, 21:03 Replies: 18 Views: 1,316 Posted By a1call Acknowledged with thanks. FTR I did not have... Acknowledged with thanks. FTR I did not have any warnings the 1st time I ran it when I initially posted. Only when I ran it today.
 Forum: Hardware 2021-07-30, 19:41 Replies: 18 Views: 1,316 Posted By a1call FTR my Antivirus software just reported that it... FTR my Antivirus software just reported that it blocked a suspicious activity by WhyNotWin11. Can a Mod please remove the links and references in post-1. If you have run the software already...
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