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An American President’s Proof of The Pythagorean Theorem
1+ mon, 1+ week ago (106+ words) As the 20th President of the United States in 1881, James Garfield came up with an elegant proof of the Pythagorean Theorem in 1876 while being a Congressman. His proof of this well-known theorem was later published in the New England Journal of…...
Triangular analog of the squircle
4+ mon, 6+ day ago (165+ words) TimF left a comment on my guitar pick post saying the image was a “squircle-ish analog for an isosceles triangle.” That made me wonder what a more direct analog of the squircle might be for a triangle. A squircle is…...
Henry George Lecture at University of Scranton
5+ mon, 3+ week ago (587+ words) The University of Scranton’s Fall Henry George Lecture, an annual presentation that has featured 13 Nobel Prize winners, recently welcomed William Easterly, Ph.D., professor of economics and co-director of the Development Research Institute… The University of Scranton’s Fall Henry George…...
Is there an analogue of Riemann's mapping theorem for split complex numbers, or otherwise? — LessWrong
9+ mon, 2+ week ago (112+ words) Published on November 27, 2025 1:09 PM GMTQuestion for mathematicians:The Riemann mapping theorem shows that it is possible to conformally transform the hyperbolic plane into an area within itself. Is there an analogue of this theorem which does the same thing for…...