
Les maths du sport
All folders in this issue
The saga of theorems Central Limit Theorem
It's astonishing, but chance is governed by a law! The normal distribution is ubiquitous in mathematics and more generally in all sciences. How Gauss sensed it through astronomy and Laplace through extension of the binomial distribution? What makes it so powerful? What role does the central limit theorem play in this adventure? Opinion polls are an application of this result, but their reliability must be taken with a grain of salt, as errors are due to the choice of samples and the methods used.
The great conjectures
What do we mean by the term 'conjecture'? How have they advanced mathematics? Mathematicians don't like a result resisting them: they regularly tackle the search for it until they find a solution. Fermat's Last Theorem kept the mathematical world in suspense for three and a half centuries. However, there are many other more or less famous conjectures, pending (Goldbach or the Riemann hypothesis), disproved or solved (some even very recently). Discover how mathematics prodigy Terence Tao proved Erdös' discrepancy conjecture!
Maths and sports
One might think that a chasm separates mathematics from the practice of sport. However, the optimization of performance in many sporting activities relies on a branch of mathematics. Geometry makes it possible to manage the trajectory of balls, but also of bicycles or Formula 1 cars. Game theory is at the basis of the strategies employed, as are probabilities, which also enable the forecasting of results and therefore the management of sports betting. Discrete mathematics (arithmetic, combinatorics…) is used for the organization of events and the establishment of rankings. Conversely, cheating can be detected through the observation of statistical inconsistencies…
All articles in this issue

The Tangente Book Prize
The jury has delivered its verdict. It awarded the Tangente Book Prize to Vincent Borrelli and Jean-Luc Rullière, and also gave a special mention to two great ladies, Stella Baruk and Évelyne Barbin.

Finance, medicine, justice... Mistakes, yes; mathematics, no!
The media regularly blur the distinction between mathematics as a formidable tool and the ways in which some people use it—incorrectly, ideologically or with deliberately malicious intent.

First look: the design for the stamp bearing Sophie Germain's likeness
A woman at the IHP!

Tangente Trophies 2015: The Results
In addition to the Tangente Book Prize, two other trophies were awarded on December 9 at the Palais du Luxembourg: the Bernard Novelli Prize and the Best Article Prize.

2016, a rich vintage
The entire Tangente editorial team joins in wishing its readers a very happy 2016. The gift it has cooked up for you? A bouquet of properties of the number 2016!

Euler's correspondence with his contemporaries
Leonhard Euler maintained an extensive network of correspondents across Enlightenment Europe. His exchanges with Christian Goldbach, of particular interest for number theory, have just been published.

Mathematical art today
Art and geometry always go well together; the material doesn't matter — wood, brick or even chocolate — as long as the shape is beautiful.









