Titlebook: Dark and Bright Mathematics; Hidden Harmony in Ar Dirk Huylebrouck Book 2023 The Editor(s) (if applicable) and The Author(s), under exclusi

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Murdering EmperorsA team around Brazilian mathematician F. A. Rodrigues improved a ‘survival analysis’ of the 69 Roman emperors by American J. H. Saleh. It used a so-called Pareto distribution, known from the 80/20 rule from computer, Netflix, or food habits. Can this survival analysis also be applied to current local elections too?

Stricture

When the Dead Talk in CodeAfter deciphering messages from Zodiac Killer and Langrenus, Belgian code specialist Jarl Van Eycke focused on cryptic message figuring on altars in a church in Moustier, near the border of Belgium and France. Does this cryptogram contain clues to a Templar treasure?

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The Most Down-To-Earth ProblemIf a number is even, divide it by 2. If it is odd, multiply it by 3 and add 1. Repeat those steps. It always ends up with 1 and no one knows why. Mathematicians, however, agree on one thing: recently, world-renowned Terence Tao made strong progress.

Indecisive

Meccano MathMathematics with Meccano sounds like a fun, constructive activity. A Nobel Prize winner in physics, a math education professor, and a research mathematician agree. One can even tackle age-old issues that are unsolvable according to classical drawing methods. And isn’t hands-on math ideal in times where technicians are needed?

Detonate

Aufgaben zum Skriptum Informatikh previously wrote an entire mathematical oeuvre from a Parisian psychiatric institution. In Belgium, David Boeckx, imprisoned for 21 years for murder, may not reach the same level, but he does want to study mathematics online at the author’s KU Leuven University, be it from behind the prison bars o