# x44_03.txt # # Reference: # # Helmut Spaeth, # Mathematical Algorithms for Linear Regression, # Academic Press, 1991, page 190, # ISBN 0-12-656460-4. # # Discussion: # # Subsystem (c) of the linear system A * X = B. # 4 columns 3 rows Index A1 A2 B 10 3 1 2 11 6 1 5 12 7 1 9