Matrice remarquables - Matrice carrée, d'ordre n (n = p) - Matrice nulle : n x p, tous coeff = 0 - Matrice diagonale : matrice carrée, tous coeff en dehors diagonale = 0 - Matrice carrée unité, identitaire : diagonale à 1, reste à 0
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The 'New York Honk,' as it was called, was the most fashionable accent an American male could have at that time, namely, the spring of 1963. One achieved it by forcing all words out through the nostrils rather than the mouth. It was at once virile... and utterly affected. Nelson Rockefeller had a New York Honk.