type(t_qr) mod_matrix::m_decompQR ( type(matrix),intent(in)  m,
character*(*),intent(in),optional  meth_qr,
real*4,intent(in),optional  eps_gsortho,
logical,intent(in),optional  is_permuted 
)

qr decomposition (HouseHolder or Schmidt)

Author:
Abal-Kassim Cheik Ahamed <akcheik@gmail.com>
Parameters:
m : type(matrix)
meth_qr : character*(*), 'ho'=>householder or 'gs'=>gram-schmidt or 'gsro'=>gram-schmidt reorthogonalization (optional)
eps_gsortho : real*4 , precision g-s reortho... (optional)
is_permuted : with permutation matrix (optional)
Date:
25th of March, 2011
Remarks:
The Rayleigh Quotient Iteration is a natural union of the power and inverse power iterations
Returns:
res : type(t_qr), QR decomposition
Todo:
implement Givens method

Definition at line 3812 of file matrix.f90.

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