Least Squares Fit to a Cubic Polynomial

FOCAL8-15

Edward T. Chow, Georgia Institute of Technology, Atlanta,

Georgia

This is a program using the method of least squares to fit a

cubic polynomial to a set of experimental data. The program

demands two passes of the data for its completion; however,

the coefficients of the polynomial are outputted after the first

pass, and at the end of the second pass the output gives the

value of R which is a criterion of fitness and gives the calcu-

lated values of the experimental data based on the cubic

polynomial.

In addition, a section of the program can be used as a self-

contained program for solution of a set of N by N linear

equations.

Other Programs Needed:
FOCAL DEC-08-AJAB

Catalog: July 1973