Function: qfjacobi
Section: linear_algebra
C-Name: jacobi
Prototype: Gp
Help: qfjacobi(x): eigenvalues and orthogonal matrix of eigenvectors of the
 real symmetric matrix x.
Doc: $x$ being a real symmetric matrix, this gives a
 vector having two components: the first one is the vector of eigenvalues of
 $x$, the second is the corresponding orthogonal matrix of eigenvectors of
 $x$. The method used is Jacobi's method for symmetric matrices.
