I think you have to do "by hand": I assume the first %p ist meant to be %pi as well:
(5) -> m:= matrix [[%pi, %i *%e],[-%i*%e,%pi^2]] + %pi %i %e+ (5) | | | 2 | +- %i %e %pi + Type: Matrix(Expression(Complex(Integer))) (6) -> cP := characteristicPolynomial(m,x) 2 2 2 3 (6) - %e + x + (- %pi - %pi)x + %pi Type: Expression(Complex(Integer)) (7) -> solve(cP, x) (7) +----------------------------+ | 2 4 3 2 2 \|4 %e + %pi - 2 %pi + %pi + %pi + %pi [x = --------------------------------------------, 2 +----------------------------+ | 2 4 3 2 2 - \|4 %e + %pi - 2 %pi + %pi + %pi + %pi x = ----------------------------------------------] 2 Type: List(Equation(Expression(Complex(Integer)))) Am 27.07.18 um 16:21 schrieb Riccardo GUIDA: > Hi > > does anybody know how to compute the eigenvalues of > > (1) -> m:= matrix [[%p, %i *%e],[-%i*%e,%pi^2]] > > ┌ %p %i %e┐ > (1) │ │ > │ 2 │ > └- %i %e %pi ┘ > > with one of friCAS eigenvalues function? > > Thanks in advance, Riccardo > -- Mit freundlichen Grüßen Johannes Grabmeier Prof. Dr. Johannes Grabmeier Köckstraße 1, D-94469 Deggendorf Tel. +49-(0)-991-2979584, Tel. +49-(0)-151-681-70756 Tel. +49-(0)-991-3615-141 (d), Fax: +49-(0)-32224-192688 -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/fricas-devel. For more options, visit https://groups.google.com/d/optout.
