Ex math prof, ex Lt. Comdr PHS, ex ultra-marathon runner, ex servant to cats; present: keeping liver, kidneys, pancreas, heart, lungs in semi-workable form.
Joined April 2009
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Gottlob Frege (1848-1925) was a German mathematician who didn't invent mathematics, but did invent modern predicate logic and quantified variables -- the language of mathematics in his 1879 book, Begriffsschrift. -> wikiwand.com/en/Gottlob_Freg…
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Most people are aware of Euclid's axioms for plane geometry, but set theory is also based on a set of fundamental axioms, called the Zermelo/Fraenkel axioms. wikiwand.com/en/Zermeloâ%8…
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One of the first problems solved using calculus was the Brachistochrone problem, which led to one of the most interesting stories in the history of mathematics. galileo-unbound.blog/2020/06…
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A famous mathematician once said he was x years old in the year x^2. Who was the mathematician, and what year x is he talking about? ans -> nrich.maths.org/problems/aug…
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100 years ago, Tait et al argued for quaternions and Gibbs argued for vectors, vectors won out. --> fexpr.blogspot.com/2014/03/t…
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A good reference to Cauchy's 1821 blunder that the limit of continuous functions is continuous is the easily readable paper -> blog.plover.com/math/Cauchy.…
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Two of the great mathematicians of the 1800s, Weierstrass stressed the analytic side and Riemann the geometric side. -->
arxiv.org/pdf/math/0305022
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Have you ever wondered why 'regression' in statistics is called regression and who invented the term? Take a look. => blog.minitab.com/en/blog/sta…
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Not everyone has heard the story about Albert Einstein and his driver. In case you haven't, here it is -> userpages.cs.umbc.edu/sourav…
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Matt Baker from Georgia Tech has a very nice math blog that discusses (non-elementary) topics in mathematics. mattbaker.blog/
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Have you ever wondered what major discoveries were made in mathematics exactly 100 years ago? This webpage answers. mathshistory.st-andrews.ac.u…
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Jun 11
Here are some top ODE and PDE. I can vouch for #1 since I taught from it 150 times (almost anyway). shortform.com/best-books/gen…
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Jun 11
Interested in some good math videos this weekend? Here are 100s of them. pinterest.com/mathematicspro…
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Jun 11
I don't teach K-12, but I'd guess this book is about the best motivator of young children about numbers and arithmetic there could be. #EduTwitter, #EdChat, #UNESCO, #topedutweet, #educationweek amazon.com/Posiland-Negaland…
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I just read the following children's book to a 1st grader. It has to be the best children's book ever written! amazon.com/Posiland-Negaland…
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11 May 2025
Looking for something great?
11 May 2025
I really love it when I can find a PDF file of a math book that is an open source (free to print, copy) like Book of Proof by Richard Hammack, or this gem, Abstract Algebra by Judson.
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11 May 2025
An elementary trig game.
11 May 2025
How to transform a SINE graph with horizontal and Vertical shifts.
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10 May 2025
Nice!
9 May 2025
"Mathematics for Machine Learning"
This FREE book from UC Berkeley covers all - Linear Algebra, Calculus, and Probability.
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10 May 2025
I just read that ChatGPT is getting close in "creative thinking" to the top 1% of human thinkers. Man, it's starting to get close to me! Ha.
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9 May 2025
Great story ... as well as any scientist, I would think.
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