This paper describes a multiple regression program for an equation with one dependent and three independent variables, which was written for a Hewlett-Packard 97 programmable “pocket” calculator. Once each variable is entered, the program calculates sums, sums of squares, sums of cross-products and means of all variables, as well as the number of entries. It also computes the determinant of the matrix, the elements of the inverted matrix, and regression coefficients. The intercept is calculated after means of all variables are re-entered, and a predicted value for the dependent variable can be determined for any set of independent variables.
South Dakota State University
Evenson, Paul, "Calculation of Multiple Regression with Three Independent Variables Using a Programable Pocket Calculator" (1978). Agricultural Experiment Station Technical Bulletins (1939-2011). 55.