# x57_01.txt # # Reference: # # Helmut Spaeth, # Mathematical Algorithms for Linear Regression, # Academic Press, 1991, page 324, # ISBN 0-12-656460-4. # # Discussion: # # Linear system A * X = B whose residual norm is to be minimized # 7 columns 6 rows Index A1 A2 A3 A4 A5 B 1 -74 80 18 -11 -4 -5 2 14 -69 21 28 0 -9 3 66 -72 -5 7 1 708 4 -12 66 -30 -23 3 4165 5 3 8 -7 -4 1 -13266 6 4 -12 4 4 0 8409