The answer to the meta is a mathematician with a ten-letter name
This is a meta puzzle for those of you out there who can remember back to high school algebra class! And I am sorry if this puts some of you off but you will actually have to do some mathematics in order to get to the answer to the meta, which is a mathematician with a ten-letter name. Here's a free hint to get you started on the meta: the image above will help. Answer & explanation: https://www.xword-muggles.com/viewtopic.php?p=137355#p137355
Check out "The MOAT Mini Pack of Marching Bands" here: https://www.ephesusscroll.com/about/interest4.html. US$5 gets you 7 Marching Bands which, hard enough on their own, now contain metas too. And once again there's a mega-meta!
It took me a while to figure out what those were supposed to mean but they mean to put it in "O(O+1)= 0" form (so O=0 or -1) and like wise the "-/+" in the F instance (for example) meant to put it in the "(F-3)(F+2)=0" form. Right? (Very unique [but consistent and correct thinking).
Hector 🤓9:35 · 2023-07-25T18:24:10.328Z
Exactly! Not only is it consistent (unlike the mech I initially relied on) but it leads to the final step much more naturally.
Laura M 🤓7:58 · 2023-07-25T07:12:08.996Z
This may be an unpopular opinion, but I think we need more metas that involve math!
You will not be the only one to have tried a few 10-letter mathematician names! ;)
Ergcat 🤓14:44 · 2023-07-25T23:53:40.347Z
And I figured it out! Seemed a bit suspicious that you didn’t just use “typical” algebraic letters a, b ,c as the unknowns. Very simple but elegant mechanism. Thanks, Ben!
merlinnimue 🤓8:36 · 2023-07-25T14:41:55.427Z
I have discovered a truly remarkable solution to this meta puzzle, but unfortunately this text field is too small to contain it.
(Great puzzle, I really enjoyed it! Moar math plz)
Are you familiar with Fermant's last conjecture. Studying the equations of Di of Antus he noted "b^x + b^y = b^z has infinite integer solutions for b =2 but no integer solutions for b>2. I have a marvelous proof but it is too small to be contained in this margin" and ever since that year some 300 days ago no-one has struggled very hard to find the proof?
Fermat wrote his famous note in the margins of Diophantus' book! But I'm guessing you might know that already. ;)
I K Snamhcok 3s · 2023-07-25T14:28:08.168Z
I got it, by searching on mathematicians, but I suspect there’s some fun wordplay that I haven’t yet considered. I’ll return to the puzzle later today,
Gad. The transcription errors I made! "f-3 = c", "(c-2)(c+4)=8" [rather than "(p-2)(p+4)=8"], "(p-2)(p+2)=8", "p+4 = v", etc.... sheesh!
Great puzzle and I really should have gotten it without so many attempts ("CIOPHAAGUS? Never heard of him but...."). Really great puzzle but tricky. (For the longest time I thought we were supposed to solve for FOCPT which can form the letters of both FOCAL POINT and OFF TOPIC) and the the "/+" was a typo ("We're supposed to ignore the negative value? But then it's zero which isn't positive? Or is the / supposed to be zero? but then the other value is neg not pos?")
Surprised as many have gotten it as there has been.
Great puzzle. (Will never play on prime time, but great puzzle).
MatthewL 🤓6:25 · 2023-07-25T18:09:57.046Z
Needed a push from lbray53, and the help of Mr. Google to help me re-learn how to factor quadratics, but finally got there. Thanks Ben! All I ask is that you give us a few weeks before the next math puzzle. My head hurts.
Jaclyn 12:04 · 2023-07-25T18:56:17.961Z
Lovely! I will say that the image hint was needed because I was overcomplicating the math(s). I was increasing one SIDE of the square, resulting in an irregular polygon, rather than one DIMENSION of the square.
Incredible meta, wow. Of course, I got through the math part easy, and then I completely fumbled the bag on how to iterate forwards and backwards properly in the alphabet. I was interpreting the +'s and -'s backwards, ending up with something like CHOPEXLRUS. To be honest, though, Chopexlrus sounds like he would have been a pretty bad ass mathematician.
After one wild guess (Pythagoras), I decided to sit down and actually work it out algebraically.
It really is more fun to "do the math" if you can. Amazingly clever puzzle.
You're definitely not the only one to try PYTHAGORAS. :)
Berto 🤓13:26 · 2023-07-26T02:45:23.358Z
Wow - after throwing a couple guesses in, I figured I’d have to do some actual solving - and wow, I’m half amazed that I got to the solution, and half amazed at the construction! Maybe doubly amazed! (Although I only got DIOE_NTUS, struggling with the H and A as I had C+2,-5… )
rjy 3s · 2023-07-26T02:39:49.115Z
Inspired construction, Ben, wish you hadn’t given in w the early nudges - I couldn’t resist them and should have wrestled this longer - very cool tho! The one bit of imprecision I was stung by was the notion of lengthening just one side (not two) had me thinking we were stretching into trapezoids, which had me using a lot more Pythagorean theorem than was warranted. Really dug way back deep into my brain for all that… but really, just inspired and smart. Kudos!
I wanted to put the nudges out early because one of them has a link to a website that factorises quadratics. That way, even non-maths people should be able to participate!
Lol I did too much math. :) I was trying to figure out how to get letters from just the roots, not the factored equation. Fun, thanks!
Berto 🤓13:26 · 2023-07-26T03:11:50.486Z
Oh (or should I say Doh!), wasn’t doing the full factorising - sorry! (C-2)(C+5)… makes it all so much cleaner, clearer… such a cool meta. Love it Ben!
Yes, the puzzle title is "Factorising Quadratics" not "Solving Quadratics" ;)
sw3aterCS 🤓12:58 · 2023-07-26T06:18:57.244Z
As someone who does mathematics, a guess for an algebraist appropriate as a meta answer came fairly quickly to me, but I had fun trying to backsolve how to get the meta answer.
can't believe you made us do math... this was genius! i am LEFTSPEECHLESS indeed! the image definitely helped as the "increase one side by #" wording threw me off... if you increase one side by 3, doesn't that side become x+3 and not 3x?
Ahh, good one! I had to use the hints on the provided link. I did the math, but then I just kept looking at the solutions to the equations (f = 2, f = -3) and got confused from those rather than looking at the factors in the equations themselves... very nice puzzle! :)
Ah, I see :) (And just to be clear - I totally love math!) :D
ReB 5s · 2023-07-29T20:34:12.541Z
Very late sending in my answer due to lack of computer access this week. Very clever, I figured out the mechanism from the title, the only glitch was trying to prove the order of the letters (which alas I needed nudge #4 to untangle).