Matrices élémentaires Ce sont les matrices qui représentent les étapes de substitution pour arriver à un système de n équations à n inconnues auquel on peut appliquer la back substitution. — Elles permettent d'obtenir les coefficients du système sous forme d'une matrice triangulaire U On passe de Ax = b à Ux = c
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There's rock n' roll in hip-hop, there's rock n' roll in pop music, there's rock n' roll in soul, there's rock n' roll in country. When you see people dress, and their style has an edge to it, that rebellious edge that bubbles up in every genre, that's rock n' roll. Everybody still wants to be a rock star, you know?
There are huge divorces and divides and chasms in black America between the have-gots and the have-nots, between the monied and the poor, between the educated and the non-educated. And there are huge and growing chasms daily. And I want to say that it's not simply about generation. It's about genre.