An experimental comparison of several approaches to the linear least squares problem
E. J. Lefferts, Daniel P. Muhonen · NASA Technical Reports Server (NASA) · 1969
Several computational algarithms for obtaining least square solutions to a system of equations are made. The a l gorithms include both conventional and pseudo inversion methods. Comparisons of running time, computer storage and accuracy of recovery are made for each algorithm in both single and doub16 precision.