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Mathematicians make progress on coloring
Coloring problems are often very simple to state and may appeal to many amateur mathematicians. Unfortunately—or perhaps fortunately?—they conceal deep difficulties that continue to tax the mathematical community. A new breakthrough was made recently.
2024: a new year with many properties
What spectacular mathematical advances, major scientific discoveries and gains in knowledge does the new year have in store for us? It is hard to say! What is certain is that the natural number 2024 abounds in wonderful arithmetic and combinatorial properties…
Maths through song | Tangente
"Today, we're doing maths!" That is the message Adrien Deslypper and Stéphane Delobel (along with a few accomplices), two high school teachers from Hauts-de-France, bring to their students every day.
A brand-new game | Tangente
"What's New?... in the Henhouse!" is the latest game from Julien le Magicien. The aim is to make 9 by combining several cards.
2023 Tangente Awards winners | Tangente
Since 2010, the Tangente Club has used the Tangente Awards to honor creative works that showcase mathematics. The winners receive a work of art. The awards ceremony took place at the Musée des Arts et Métiers in Paris on December 3, 2023, during Tangente Day.
Inflation: a scam? | Tangente
Inflation is falling, but prices are rising: are we being lied to? No—sadly, this is normal! Saying that the price index is rising means that "the" function representing prices is increasing.
Mathematics, the key to the future | Tangente
More than 180 leading figures from the worlds of science, business and industry warned in the December 5 issue of Le Monde that France is losing ground as a scientific and mathematical power.
PISA: the plunge | Tangente
Released in December, the results of the 2022 PISA survey (the Programme for International Student Assessment, which assesses 15-year-olds) show a sharp decline in French students’ mathematics performance.
Des couches de cercles | Tangente
La revue aérienne | Tangente
Suites de sommes | Tangente
Les stylos de Greg Mer | Tangente
Les balles de tennis | Tangente
Verre qui roule n’amasse pas mousse | Tangente
Murailles de sable | Tangente
Curriculum vite fait | Tangente
Sortir de la spirale | Tangente
Un problème peut en cacher un autre | Tangente
D’une situation de géométrie combinatoire, on peut passer à une question de théorie des nombres. Il suffit pour cela de changer de point de vue.
Le trésor de Papy Askilman | Tangente
L’Institut intergalactique est le temple de l’excellence, où exerce le redouté professeur Phi. Un séjour sur la Vieille Terre est l’occasion de résoudre une première énigme.
Une histoire des plus beaux résultats… | Tangente
« Têtu comme un axiome » | Tangente
Jeux de mots et d’esprit | Tangente