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Eigenvalues : egvl eigenvalues eigVl

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 diagonalozation of A if the coefficients are numeric.
Input :
egvl([[4,1,-2],[1,2,-1],[2,1,0]])
Output :
[[2,1,0],[0,2,1],[0,0,2]]
Input :
egvl([[4,1,0],[1,2,-1],[2,1,0]])
Output :
[[0.324869129433,0,0],[0,4.21431974338,0],[0,0,1.46081112719]]



giac documentation written by Renée De Graeve and Bernard Parisse