Gilles Cohen
61 articles published in Tangente
History and CultureN°200Jun 10, 2021An extraordinary story
How did France manage to create the world's only general-interest mathematics magazine, sold at newsstands? How did this bimonthly reach its 200th issue after a third of a century of uninterrupted publication? What a story!
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Reading noteN°200Jun 10, 2021Editorial
The "mathematical adventure" that began with the creation of Tangente in 1987 continues with the publication of issue 200. Its Publishing Director, Gilles Cohen, one of the magazine's founders, describes the exceptional content of this "Collector" issue.
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Math for everyoneN°76Nov 04, 2020Linear recurrences and an epidemic of mathematical talent
Recurrence sequences are a common feature of games and problems. They offer a good opportunity to discuss the linear and affine recurrences that often arise in them.
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History and CultureN°196Oct 15, 2020Little square puzzles
Square-grid number puzzles appeal to enthusiasts of recreational mathematics. This selection comes from the "Affaire de logique" column in the newspaper Le Monde.
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History and CultureN°195Jul 16, 2020The Bernard-Novelli prize
Another Tangente Trophy will be awarded this year: the Bernard-Novelli Prize. Run for several years with CASIO’s support, it recognizes a middle- or high-school student—working alone or in a group—who has written a computer program based on a mathematical game.
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History and CultureN°195Jul 16, 2020Tangente Prize
You can read while nurturing your interest—or even your passion—for mathematics! Many authors draw inspiration and the subjects of their books from the inexhaustible wealth of material that mathematics provides. The Tangente Book Prize exists to promote the most captivating of these books.
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Math for everyoneN°194May 19, 2020An equation with too many unknowns
The Covid-19 pandemic took the world by surprise, both through its virulence and the speed of its spread. A wealth of statistics, sometimes contradictory, has been published. Governments have introduced measures that often differ from one country to another. A range of medical treatments is being used. Can mathematics help us make the right decisions?
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Math for everyoneN°192Jan 22, 2020An aberration: the discontinuity in mathematics education
In France, every reform reduces the opportunities for students on non-science tracks to study mathematics.
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InterviewN°73Jan 14, 2020Stories of successful collaborations
On November 26, 2019, AMIES invited a number of speakers to describe successful collaborations between companies and mathematical research laboratories. It was an opportunity to discover sometimes unexpected partnerships, suggesting that mathematics will play an increasingly prominent role in business operations.
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History and CultureN°189Jul 16, 2019Enter the Tangente Best Article Award
Why not showcase your talent for bringing mathematical culture to a wider audience? That is exactly what the Tangente Best Article Award is for. Read this page and you will have everything you need to submit, by September 30, a miniature masterpiece that might even be published in Tangente.
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History and CultureN°189Jul 16, 2019Tangente Prize 2019: vote (and get others voting)!
As they do every year, our readers are invited to read books about mathematics published for a general readership over the past eighteen months and vote for their favorite. The five books receiving the most votes will become the "nominees," from which the jury will select the 2019 winner of the Tangente Book Prize.
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History and CultureN°187Mar 26, 2019The decline of mathematics in high school: a vicious circle
On January 24, 2018, the Villani–Torossian report, "21 Measures for the Teaching of Mathematics," was published, generating enthusiasm among the teaching community. That enthusiasm was tempered on February 12 by the announcement of the forthcoming high school reform.
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