Cours Diagonalisation (Maths spé)

Maths Spéciales (2nd Year French Engineering University Math  “Linear Algebra”): The French way of treating Matrices is very general and abstract. Advantage is  it studies Matrices at a theoretical high-level, disadvantage is it ignores on  applications.

This young French prof explained in 30 mins  at great length of what is simply the Characteristic Polynomial Equation:

\boxed {det (A - \lambda.I) = 0 }

Cours 1/2

Cours 2/2



Compare it with the more practical (but less theoretical – 知其然而不知其所以然) American teaching below from the famous MIT Prof Gilbert Strang for the same Diagonalization of Matrices:

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