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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Big band music, to me, it really has three key elements. First is the lyrics are really sweet, and they're just really family-friendly. The second thing is the music is jazz music, so the music is complicated enough to hold your attention for 5 or 6 million plays. That makes the songs interesting. The last part is the fact that it's danceable.
I went to see the stock exchange when I was 18 years old. I'm not a Wall Street lawyer, I'm a Stanwix Street lawyer. Stanwix Street is a street in downtown Pittsburgh. One of the clients is Mellon Bank, which merged with the Bank of New York Mellon a number of years ago. And I have for years have done software licensing for Mellon.