BERTRAND HAUCHECORNE
179 articles published in Tangente
Math for everyoneNov 29, 2019A special issue for everyone
When a general-interest weekly such as Le Point publishes a special issue devoted entirely to mathematics, the Tangente editorial team can only be pleased—particularly because it addresses issues and values close to our hearts, as the titles of its three sections show: "Maths for everyone", "Maths are everywhere" and "Practical maths".
Read →
Math for everyoneNov 26, 2019Jeanne Calment and… mathematics
Jeanne Calment of France, who died in 1997 at the exceptional age of 122, long held the title of the world's oldest person. In January, Nicolaï Zak, a Russian mathematician with an interest in genealogy, and gerontologist Valeri Novosselov claimed that Jeanne had in fact died back in 1934 and been "replaced" by her daughter Yvonne… because of an inheritance-tax matter.
Read →
Math for everyoneNov 25, 2019When 60 divides 9
Divisibility can be considered in sets of numbers other than the integers. One such set, introduced as early as fourth grade, lends itself perfectly to this generalization: the terminating decimals.
Read →
Math for everyoneN°72Oct 09, 2019Word histories
"Optimum," "maximum," "minimum," "extremum": Latin vocabulary has certainly been plundered for terms denoting the extreme values of a function.
Read →
History and CultureSep 23, 2019Kurt Hensel, father of p-adic numbers
Kurt Hensel is best known for his work on p-adic numbers.
Read →
Reading noteSep 23, 2019Kurt Hensel, the father of p-adic numbers
Kurt Hensel is best known for his research on p-adic numbers.
Read →
Math for everyoneSep 23, 2019Patrick Dehornoy has passed away
The specialist in ordered braids also made numerous videos popularizing mathematics.
Read →
History and CultureSep 23, 2019Number theorist Christian Mauduit has died
The number theorist was an expert on representing integers in different bases.
Read →
Reading noteSep 23, 2019Number theorist Christian Mauduit has died
The number theorist was an expert on representing integers in different bases.
Read →
Math for everyoneSep 23, 2019At last, 42 can be written as a sum of three cubes
The last integer below 100 to withstand number theorists' onslaught has finally surrendered!
Read →
Sep 23, 201942 can finally be written as a sum of three cubes
The last integer below 100 still resisting number theorists’ efforts has finally surrendered!
Read →
Math for everyoneSep 18, 2019A dive into a strange world of numbers
At the beginning of the 20th century, the German mathematician Kurt Hensel "invented" new numbers, written with infinitely many digits as in the decimal system, but based on a very different notion of proximity. This curious theory has proved highly fruitful in arithmetic!
Read →