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lp.org
lp.org > beyond-project-archimedes

Beyond Project Archimedes

9+ mon, 3+ week ago   (593+ words) I have been sending you a series of messages to explain how we will do that....

TelegraphHerald.com
telegraphherald.com > upload_photos > image_0088dede-4479-5480-a751-45823d0ac086.html

Slotkin Pentagon Letters

3+ week, 5+ day ago   (123+ words) Invalid password or account does not exist Submitting this form below will send a message to your email...

ClickHole
clickhole.com > heartwarming-the-thousands-of-texts-and-photos-exchanged-between-this-high-school-math-teacher-and-her-male-student-were-about-the-pythagorean-theorem

Heartwarming: The Thousands Of Texts And Photos Exchanged Between This High School Math Teacher And Her Male Student Were About The Pythagorean Theorem

4+ mon, 1+ week ago   (278+ words) Send me more when you have a chance. Bryan: I’ll try. But they’re hard to draw. Wow....

johndcook.com
johndcook.com > blog > 04/30/2026 > burmanns-theorem

Approximating even functions by powers of cosine

4+ mon, 1+ week ago   (221+ words) A couple days ago I wrote a post about turning a trick into a technique, finding another use for a clever...part of a more general series The first-order approximation has error O(x4), as shown in the earlier post...For…...

johndcook.com
johndcook.com > blog > 05/06/2026 > triangular-analog-of-the-squircle

Triangular analog of the squircle

4+ mon, 1+ week ago   (165+ words) TimF left a comment on my guitar pick post saying the image was a “squircle-ish analog for an isosceles...See, for example, this post....

johndcook.com
johndcook.com > blog > 11/18/2025 > pythagorean-triples-2

Pythagorean triples

9+ mon, 3+ week ago   (62+ words) Five posts on Pythagorean triangles and Pythagorean triples Primitive Pythagorean triangles with the...triples Matrix Pythagorean triples Approximation by Pythagorean triangles Fibonacci meets Pythagoras The post...Five posts on Pythagorean triangles and Pythagorean triples Primitive Pythagorean triangles with the...

johndcook.com
johndcook.com > blog > 06/04/2026 > integrating-smooth-periodic-functions

Integrating smooth periodic functions

3+ mon, 1+ week ago   (180+ words) Several posts lately have looked at the function f(x) = cos(sin(x) + x)....This post will look at the function from a different angle....

johndcook.com
johndcook.com > blog > 08/16/2026 > proportion-of-1s-in-a-hadamard-matrix

Proportion of 1s in a Hadamard matrix

4+ week, 11+ hour ago   (181+ words) The first post in the recent series of posts on Hadamard matrices describes a way of constructing new...

johndcook.com
johndcook.com > blog > 11/27/2025 > hyperbolic-metric-formulas

Five formulas for the hyperbolic metric

9+ mon, 2+ week ago   (329+ words) The previous post described a metric for the Poincaré upper half plane....that the four equations are equivalent, or that any of them matches the expression in the previous post...See the bottom of this post....expressions are equal, but…...

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