File: spec.cat

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spec(G)                        Scilab Function                        spec(G)
NAME
  spec - eigenvalues

CALLING SEQUENCE
  evals=spec(A)

PARAMETERS

  A    : real or complex square matrix

  evals
       : real or complex vector

DESCRIPTION
  evals=spec(A) returns in  vector evals the eigenvalues of A.

  Eigenvectors are obtained by bdiag.

EXAMPLE
  A=diag([1,2,3]);X=rand(3,3);A=inv(X)*A*X;
  spec(A)
  //
  x=poly(0,'x');
  pol=det(x*eye-A)
  roots(pol)
  //
  [Ab,X,bs]=bdiag(A);
  Ab
  clean(inv(X)*A*X)

SEE ALSO
  poly, det, gspec, schur, bdiag, colcomp