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How Euler Did It, by Ed Sandifer

eulerarchive.maa.org

71–80 of 111 posts

Re: How Euler Did It, by Ed Sandifer

#71
post #37
post #14

Earlier quoted context omitted.

Maybe today's emphasis on "well rounded" education is a distraction from specialized talents.

Euler did his master’s dissertation on the philosophies of Descartes and Newton. He then joined the faculty at University of Basel in theology. I think this is ample evidence that he received a well-rounded education.

Not to mention his day job for a while as the chief cartographer in the Russian Empire.

Re: How Euler Did It, by Ed Sandifer

#72

Earlier quoted context omitted.

Euler is in a class of one. Judging by the volume of work and the pleasure he takes in collaborations, Terence Tao seems to be having a positive impact. I am not a mathematician but I hear good things about the quality of his work.

> I am not a mathematician but I hear good things about the quality of his work. Not to be rude, but saying this about a Fields medallist is somehow very funny.

I can see that. But, there are often controversies about who gets what award, even up to the Nobels. Since there are very highly qualified people posting here, I just wanted to be clear that I have no ability to understand Tao's work and am going by acclaim.

Re: How Euler Did It, by Ed Sandifer

#73

Earlier quoted context omitted.

Education is a cog/mandarin factory in most countries. Whizzkids will educate themselves, what's needed is giving people idle time in order to pursue things. Most influential thinkers found themselves with this in some fashion. How much talent is wasted making people jump through hoops in academia/finance/ad-tech? A lot of pre-industrial thinkers were associated with the clergy because they received tax money from pe…

The issue I see these days is that every industry is getting more and more competitive, and leaves less and less time to think more broadly or creatively. Can't go off reading about differential geometry when you need a guaranteed perfect SAT, a great entrance essay (i.e. a strong personal story), and easy-to-gauge extracurriculars ("placed X in Y", not "read some smart books and had some interesting thoughts that do…

I think top schools are much more likely to accept that kid with a 1550 on the SAT who spent his downtime studying differential geometry instead of the SAT.

Re: How Euler Did It, by Ed Sandifer

#74
post #2

I have read a few of these and enjoyed them greatly. Reading them you realise that Euler really did invent a huge swathe of mathematics in use today. In particular I read this one: http://eulerarchive.maa.org/hedi/HEDI-2009-02.pdf And I realised that Euler had found two formulae for Pi which can be used to calculate any hex digit of Pi. I wrote this up in a paper: "In 1779 Euler discovered two formulas for π which ca…

I just skimmed through the MAA article and I'm reading your paper right now. I think it's supremely cool that people are still getting mileage out of papers published almost 250 years ago.

One other cool thing about Euler and BBP-type pi series: Euler seems to have derived his results in a manner similar to how the famous BBP formula

{\displaystyle \pi =\sum _{k=0}^{\infty }\left[{\frac {1}{16^{k}}}\left({\frac {4}{8k+1}}-{\frac {2}{8k+4}}-{\frac {1}{8k+5}}-{\frac {1}{8k+6}}\right)\right]}

is actually proven. A friend of mine gave the proof of the famous series result as an exercise in his honors calc 2 class one year. They had some fun with it.

https://en.wikipedia.org/wiki/Bailey%E2%80%93Borwein%E2%80%9...

Re: How Euler Did It, by Ed Sandifer

#75
post #5

Earlier quoted context omitted.

I always stress how our public education is broken since it can't handle extreme talent very good. Important breakthroughs that advance one or more fields extremely or shifting paradigms completely, were done or prepared by whizzkids. In these times, we need every whizzkid we can get.

Education is a cog/mandarin factory in most countries. Whizzkids will educate themselves, what's needed is giving people idle time in order to pursue things. Most influential thinkers found themselves with this in some fashion. How much talent is wasted making people jump through hoops in academia/finance/ad-tech? A lot of pre-industrial thinkers were associated with the clergy because they received tax money from pe…

> Whizzkids will educate themselves

Only those you see becoming one.

You never hear of all the "Einsteins" who never leave the patents office because they never got inspired for some passion or various other stupid reasons.

Re: How Euler Did It, by Ed Sandifer

#76
post #5

Earlier quoted context omitted.

I always stress how our public education is broken since it can't handle extreme talent very good. Important breakthroughs that advance one or more fields extremely or shifting paradigms completely, were done or prepared by whizzkids. In these times, we need every whizzkid we can get.

No system will handle an Euler well. It’s best to recognize them and move them out of the system.

You're basically saying the system is obsolete when society reaches a point, where it needs no more mediocre generalists and only excellent specialists.

I wouldn't be so pessimistic.

Re: How Euler Did It, by Ed Sandifer

#77
post #54
post #42

Earlier quoted context omitted.

The low hanging fruit argument only takes you so far. How many other mathematicians in his epoch or before were able to pick as many low hanging fruits as him?

By all means he was a crazy outlier generational genius. A few others in history, like Archimedes and Newton, have been accused of "not leaving anything for anyone else to discover" as well. The question was: why do we not seem to see these crazy outliers anymore? The answer is certainly not that truly exceptional people simply stopped being born after the year 1800. The nature of what it could mean to "know everythi…

Also they lived in a time with far less education and communication.

Newton and Leibniz discovered calculus simultaneously. If calculus were a hot new idea now, dozens or hundreds of people would be discovering it simultaneously.

Look at NN/LLM AI for an example.

Re: How Euler Did It, by Ed Sandifer

#78

Earlier quoted context omitted.

Part of the problem is he wrote so much it has taken a while to go through it all. I believe the "Opera Omnia" project to publish all his works has been going for over a hundred years and is just about getting to the end now. So I would expect there's a huge amount that just hasn't been fully appreciated/digested.

How is this humanly possible? Was Euler even an order of magnitude faster at producing new math than, say, Gauss or von Neumann?

Euler had scribes do a lot of the grunt work for him. His vision was quite bad and worsened throughout his life, going blind in his right eye rather early on and later developing cataracts in his left. He once joked "Now I will have fewer distractions" on his condition.

Re: How Euler Did It, by Ed Sandifer

#79

Euler's wikipedia page has one of the most casually jawdropping sentences I've ever read about a human being: "Euler's work averages 800 pages a year from 1725 to 1783. He also wrote over 4500 letters and hundreds of manuscripts. It has been estimated that Leonard Euler was the author of a quarter of the combined output in mathematics, physics, mechanics, astronomy, and navigation in the 18th century." A quarter of a…

Wait until you find out he was totally blind the last 15ish years of his life _and wrote more during that period than any other_. Scribes would just sit and he would talk while they wrote. He literally died while doing a calculation in this manner dealing with the hot new invention of Ballooning.

Re: How Euler Did It, by Ed Sandifer

#80
Euler's textbooks were such a gift to Europe. I'm always a bit perplexed he doesn't get more credit for this given he wrote some of the first calculus books people could read, because Newton had not cared or tried to. So in many ways Euler was also just an incredible educator and largely lead the charge spreading many of these new ideas. Usually credit is given to Chatelet, but she didn't really write any textbooks, just a commentary to help spread Newton's mechanics. Euler actually wrote the first bona-fide textbook on the matter. Laplace was being literal when he said "Read Euler, read Euler, read Euler".

I own a copy of his "Elements of Algebra" and it's interesting to read because he actually talks and uses the notion of infinitesimals in this basic algebra book. And it makes sense! He essentially just says "think of the biggest number, make it even bigger!!! Now, put it under 1, and just like that we 'get almost zero'"

You would never see something like that now, or even then really, and yet the idea is so simple a kid understands. His writing just has such an optimistic and playful sense to it.

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