Orphan
Default folder for articles without a specific directory
All articles in this folder
The mysterious crystal
For a change, beneath its polyhedral exterior, the subject of this instalment in our mathematical objects saga is a puzzle. You will find everything you need to build it on the Tangente website.
Build your mysterious crystal: patterns & assembly | Tangente
The Mysterious crystal—actually the first stellation of the rhombic dodecahedron—can be built from six identical pieces. Whether you use scissors, a cutting machine or a 3D printer, choose whichever method suits you. The hardest part is working out how to assemble them.
Tangente Awards: Mathematical Literature Prizes | Tangente
As usual, summer brings mathematics and literature together—and computer science and games too—for the Tangente Awards. As Tangente readers, we hope you will get involved by taking part in these events, spreading the word and voting...
The Tangente prize for high school students
Because of the school calendar, the Tangente Prize for High School Students concludes in June. Discover the winners of the 2018 edition, along with the ten books selected for the 2019 prize, which gets under way as soon as the new school year begins. Registration is now open!
Robert Langlands finally wins 2018 Abel Prize | Tangente
Like the Fields Medal (restricted to those under 40), the prestigious Abel Prize crowns a career in mathematical research, honoring one outstanding scientist every year since 2003.
Mickaël Launay wins D'Alembert Prize | Tangente
The awards are pouring in for Le Grand Roman des maths. The D'Alembert Prize, awarded by the French Mathematical Society, recognizes efforts to popularize mathematics.
Who will win the 2018 Fields Medal? ICM Rio | Tangente
The International Congress of Mathematicians, where numerous prizes are awarded, including the famous Fields Medals, is held every four years. This summer, it will take place in Rio de Janeiro, Brazil, from August 1 to 9.
The withholding tax formula explained | Tangente
From 2019, French taxpayers will have tax withheld at source. Until then, taxes paid in any given year were based on income from the previous year.
Geometry of footballs: from icosahedron to cube | Tangente
Every World Cup has its own ball. But while the ball's colors and technical features take center stage, let's not forget the mathematics hidden within!
Paris, the capital of mathematics competitions, 2018 | Tangente
Following the Kangaroo awards and the national Olympiad prize ceremony, and with the International Mathematical Games Championship final still to come in August, Paris hosted the International Tournament of Young Mathematicians in early July. This international mathematics research competition for high school students was first launched in the French capital in 2003.
À la bonne heure : deux montres qui dérèglent | Tangente
Trois heures dix-huit : angle entre les aiguilles | Tangente
Mensonges : énigme des anniversaires frères | Tangente
La croisière s'amuse : distance entre deux bateaux | Tangente
Gare au radar : calcul d'erreur de mesure | Tangente
Problème à Tick : éclipses de lunes en orbite | Tangente
♦♦ La chapelle
Vider le bureau : problème de travail combiné | Tangente
Tour du monde en 80 nuits : quel jour est-il ? | Tangente
L'horloge du quai – Problème de segments | Tangente
Le jeu du plus ou moins – Stratégie mathématique | Tangente
♦♦♦ Les menhirs
C'est très probable ! – Probabilités conditionnelles | Tangente
Couvertures par couvertures : pavage et tiroirs | Tangente
Ssssss Zzz – Pièces S et Z sur quadrillage | Tangente
À table, et prenez vos serviettes ! – Probabilités | Tangente
Chez ce cher Serge – Variante du problème impossible | Tangente
La pomme d'or du professeur Phi – Volume | Tangente
L'institut intergalactique est le temps de l'excellence, où exerce le redouté professeur Phi, qui vient de se voir remettre une prestigieuse récompense honorifique.
Empiler des boulets de canon – Conjecture de Lucas | Tangente
Des questions pour les artilleurs et... les marchands d'oranges inspirent depuis plusieurs siècles les mathématiciens. Les empilements : un sujet canon !
Les « haha » de Martin Gardner – Énigmes | Tangente
Le grand spécialiste américain des jeux mathématiques, Martin Gardner (1914 - 2010), aimait par dessus tous les problèmes qui pouvaient se résoudre par ce qu'il appelait un « haha ».
Des problèmes venus du Moyen Âge – Alcuin | Tangente
Le théorème des cinq cercles de Miquel | Tangente
Pour (re)découvrir Leonhard Euler – Biographie | Tangente
Grigori Perelman, le Russe libre et indomptable | Tangente
Alan Turing, le génie britannique incompris | Tangente
Claude Shannon, l'Américain précurseur | Tangente
Crimes à Oxford : une enquête mathématique | Tangente
Enquête, amour et maths – Roman policier | Tangente
Quand maths et poésie se rejoignent – Villani | Tangente
Des traductions renversantes – Ambigrammes | Tangente
Un florilège d'illusions d'optique originales | Tangente
Giann'Illusions – Illusions d'optique expliquées | Tangente
Une philosophie du savoir appelée bayésianisme | Tangente