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Tangente
Maths and games
January 30, 2019

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Maths and games

Games and mathematics are intimately linked. By solving problems or imagining theories, are we not playing? Conversely, the various strategies developed by a player and the algorithms for solving situations in board games gave rise to a field of mathematics, game theory. We then understand why games can... "play" a role in school and make education fun. What if every math problem took the form of a game? Puzzles and other recreational pastimes have long been popular with readers, in the press as well as in publishing. Eminent mathematicians have even posed challenges at the boundary between pure play and mathematical problems. Doing math through play means reconciling the useful and the pleasant, it means improving life in society. It is not surprising that the theme of Maths Week 2019 is "Playing together with mathematics".

Léonard de Vinci

Exactly five hundred years after his death, Léonard de Vinci still fascinates. For the French, it is through the Mona Lisa at the Louvre, and the spectacular inventions presented at the Clos Lucé castle in Amboise. Artist, engineer, scientist, this brilliant Italian scholar crossed the Alps to end his days in the Loire Valley. His close connection with Luca Pacioli, a mathematician who founded accounting, led Léonard toward a mathematical approach. His drawings of polyhedra transform geometric figures into works of art. In a world emerging from the Middle Ages, well before René Descartes, his mastery both theoretical and practical of perspective led him to understand, through the close connection that exists between painting and mathematics, the importance of the scientific approach.

All articles in this issue

The mind-bending properties of infinity
Math for everyone

The mind-bending properties of infinity

Infinity abounds in paradoxes of every kind. For example, the terms of certain numerical series can be rearranged so that they converge… to any number chosen in advance! Skeptical? Follow Bernhard Riemann's reasoning…

Clément LelièvreJan 21, 2019
The planispheric astrolabe
Math for everyone

The planispheric astrolabe

The astrolabe is the scientific instrument par excellence! The king of measuring instruments, it ruled supreme for more than a thousand years. It has since lost its former glory, and few people still use it or handle it with nostalgia. Yet it offers a wonderful opportunity to put mathematics into practice.

Jean-Jacques DupasJan 23, 2019
Astro: street art, trompe-l'oeil and optical illusions
Math for everyone

Astro: street art, trompe-l'oeil and optical illusions

A painter and visual artist, Astro favors random structures and elementary geometric forms in both his paintings and his murals. Trompe-l'oeil, anamorphoses and other optical illusions also interest this self-taught artist.

Denise Demaret-PranvilleJan 23, 2019
Fields medalist Jean Bourgain dies at 64
History and Culture

Fields medalist Jean Bourgain dies at 64

Belgian mathematician Jean Bourgain died on Saturday, December 22, 2018, following a long illness.

DANIEL JUSTENSJan 23, 2019
Three exceptional mathematicians we have lost
History and Culture

Three exceptional mathematicians we have lost

The days following Christmas 2018 were particularly cruel for the mathematical community. In addition to Jean Bourgain, we learned of the deaths of Elias Menachem Stein (193–12018), Sir Peter Swinnerton-Dyer (1927–2018) and Sir Michael Francis Atiyah (1929–2019).

La rédaction de TangenteJan 23, 2019
The Math-o-LU workshops launch in 2019
Math for everyone

The Math-o-LU workshops launch in 2019

The Maison des mathématiques de l'Ouest, which brings together mathematics outreach initiatives across Pays de la Loire, and the Résonnance association, which runs dance and theater workshops linked to science, spearheaded a project to establish a mathematics club at Le Lieu Unique, a performing arts venue in Nantes (Loire-Atlantique).

Cassiopée CunibilJan 23, 2019
Let’s play with 2019
Math for everyone

Let’s play with 2019

We thought 2019 was an unremarkable number. Not at all! As it does every year, the Tangente team has surpassed itself in uncovering its finer qualities.

La rédaction de TangenteJan 23, 2019
Writing for Tangente in 2019
Math for everyone

Writing for Tangente in 2019

What if you, too, wrote for Tangente? To that end, the Club Tangente is getting an early start on its 2019 Best Article Prize (PMA), organized in partnership with the CultureMath website and the APMEP.

La rédaction de TangenteJan 23, 2019
The astrolabe: all the answers
Math for everyone

The astrolabe: all the answers

After reading the article on the planispheric astrolabe, practise using it by answering these questions

Jean-Jacques DupasApr 29, 2019