Syntax
hessenberg(Mtrx(A))
Description
Matrix reduction to Hessenberg form. Returns [P,B] such that B=inv(P)*A*P.
Example
hessenberg([[1,2,3],[4,5,6],[7,8,1]]) returns [[[1,0,0],[0,4/7,1],[0,1,0]],[[1,29/7,2],[7,39/7,8],[0,278/49,3/7]]]
hessenberg — Discussion