Today's date, 9/16/2025, is Pythagorean Day because 9 - 16 - 25 are the squares of the sides of the 3 - 4 - 5 right-angle triangle. This year is particularly special because 2025 is also the square of 45.
Read more at: https://www.npr.org/2025/09/16/nx-s1-5535545/pythagorean-triple-square-day-9-16-25
Adjunct faculty member of the University of Redlands, School of Business.
Retired Quality Engineering Manager - Abbott Labs (32 years).
Favorite classes to teach: Management Science, Statistics, Operations Management, Analytics.
Contributor to the Online Encyclopedia of Integer Sequences (OEIS) https://oeis.org/.
Pope Leo XIV (Image by: Edgar Beltrán, The Pillar Deed - Attribution-ShareAlike 4.0 International - Creative Commons ) On May 25, 2026, Po...
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