--- Algorithm 7.1 on page 229 is not cmplete, the step 3 creates vector u, next step bust be
multiplication of matrix H byu vector x

-- lansym was completely rewritten
-- lansymgn is not working correctly, the algorithm is referenved at the end opf the book
it says that algorithm is described in section 12.7. However, the algorithm is not described 
in the section and anywhere else and will be deleated from the package. The corresponding reference
at the end of the book must deleated as well

-- lsitrn1 (algorithm 8.2) and lsitrn1  (algorithm 8.7) work only for square matrices, is that correct?
-- minnmsvd (section 8.7.3) for finding minimum norm ls solution using svd workds only for square matrices?
-- power (Algorithm 9.1) was renamed to power_iter, because it copnficts with the standard
matlab function power, the references to this function on pages 349 and 636 must be updated
-- sucov was completely rewritten