Soit E (x, y) = x2 – 8xy + 19y2 – 6y + 10 pour x et y deux réels.
Quelle est la valeur minimale de l’expression E (x, y) ?
Games and ChallengesProblem
Problème : la valeur minimale | Tangente
♦♦ La valeur minimale
This article is not yet available in English; the French version is shown.
On the same theme
Articles recommended for you.
History and Culture
Skewes's numbers: enormous bounds in number theory
Skewes's numbers are among the large numbers encountered in arithmetic.
Daniel LignonApr 22, 2026
Math for everyone
A logarithm beneath the hyperbola | Tangente Magazine
Although Napier introduced them purely as an aid to calculation, logarithms gradually permeated every branch of mathematics. Their fundamental nature emerged particularly clearly through their connections with geometry, trigonometry and the hyperbola.
BENOIT RITTAUDJul 17, 2017
History and Culture
A modern theory with ancient roots | Tangente
It was during the twentieth century that convexity emerged as a mathematical discipline in its own right. Before then, eminent mathematicians had occasionally glimpsed the potential value of this notion in geometry and analysis.
Jacques BairFeb 14, 2022