(11-12-2019 11:59 AM)SlideRule Wrote: Any familiarity with CURVE FITTING FOR PROGRAMMABLE CALCULATORS {ISBN 8-943494-00-1} by William M. Kolb?

"PREFACE

This book provides all of the essential information needed to fit data to the most common curves. It avoids the usual mathematics and presents instead, straightforward solutions that can be used with most calculators. A basic introduction is included for the novice user of statistical models. The more intrepid explorer may find the sections on derivations, transformations, decomposition and substitution valuable for developing custom curve fitting routines. Users of the Hewlett-Packard HP-41C/V programmable pocket computer can make immediate use of many models presented with the program and bar code included …

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1. REGRESSION

One technique used to formulate a statistical relationship among these variables is regression … The most common form of regression is …"

135 pages of documented & illustrated regression analysis & techniques applied to curve fitting on a programmable calculator.

BEST!

SlideRule

That would probably be overkill, as it's a MASSIVE program that computes a few dozen fits simultaneously, but it's a fantastic reference if you want to use the formulas therein to implement smaller, more focused programs of your own.