egvl (or eigenvalues eigVl) takes as argument a
square matrix A of size n.
egvl (or eigenvalues eigVl) returns the Jordan normal
form of A.
Remark: If A is exact, Xcas may not be able
to find the exact roots of the characteristic polynomial,
eigenvalues will return an approximate diagonalization of A if the
coefficients are numeric.
Input:
Output:
Input:
Output: