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The Euclidean revolution
Some profound results, such as Pythagoras' theorem, predate any awareness of mathematics as a science. Rather, once theorized and proved, these results gave rise to this science.
The 2021 mathematical calendar is here! | Tangente
In 2021, the mathematical calendar explores the solar system!
Penrose takes center stage to kick off 2021 | Tangente
To mark the award of the 2020 Nobel Prize in Physics to Sir Roger Penrose—a mathematician well known for his work in cosmology, differential geometry, tilings and science communication—Tangente is shaking up its schedule!
"Winter is coming" | Tangente
In France, the annual influenza epidemic generally occurs between November and April. Timing therefore appears crucial to understanding how the influenza virus spreads: this pathogen has a period during which it is transmitted more readily through the population.
2020 Tangente Awards winners | Tangente
Promoting the interdisciplinary role of mathematics, bringing it to the attention of young people—and the not so young—and fostering creativity: these core Tangente goals find expression in the Tangente Trophies, whose 2020 winners are presented here.
Vaughan Jones, the knot magician
The mathematician Vaughan Jones, who died on September 6, 2020, profoundly influenced several areas of mathematics, including topology and functional analysis, as well as physics, particularly quantum theory. His name remains associated with powerful invariants in knot theory.
Meet Fabien Durand, president of the SMF | Tangente
At the end of last June, the Société mathématique de France (SMF) elected mathematician Fabien Durand as its new president. He enthusiastically agreed to speak with the editorial team at Tangente.
Squares in art | Tangente
Several artists have taken an interest in the square in order to explore its geometry
La course : énigme logique | Tangente
Superstitieux : combien de joueurs ? | Tangente
Les jetons : partage équitable | Tangente
Des frites et des gaufres | Tangente
Léon, Noël et les palindromes | Tangente
Problème de partage de pizzas | Tangente
Une conférence soporifique | Tangente
Rencontre au bistrot | Tangente
Vice versa : symétrie numérique | Tangente
Cueillette des champignons | Tangente
Une mystérieuse conversation | Tangente
L'Institut intergalactique est le temple de l'excellence, où exerce le redouté professeur Phi. Une conversation de couloir est l'occasion de se creuser la tête sur une énigme arithmétique.
Entrez dans la danse
Les paradoxes probabilistes sont légion. Chacun sait aujourd'hui que la probabilité que parmi vingt personnes, deux au moins soient nées le même jour est bien supérieure à ce qu'on peut intuitivement penser. Mais que dire de la probabilité que parmi dix paires de danseurs choisies au hasard parmi dix couples, au moins une soit un des couples ?
Des suites qui prennent la mesure | Tangente
Un petit tour d'horizon des suites qui se mesurent elles-mêmes a été proposé dans Tangente 195 (2020). À la demande de nos lecteurs, la rubrique « Mathématiques étonnantes » revient sur ce thème !
Mystères de l'écriture et maths | Tangente
Méthodes de démonstration en maths | Tangente
Autobiographie d'un médaillé Fields | Tangente
Vers l'infini et au-delà ! | Tangente
Redécouverte des graphes par le jeu | Tangente