The REGRESS Program and Nonlinear Regression Software An overview of nonlinear regression software Some historical background regarding the Method of Least Squares The REGRESS manual Obtaining REGRESS The book preface Table of Contents Obtaining the book Examples: Example 1: A simple example Example 2: Same as one but data weighted differently Example 3: Fitting a nonlinear model to 7 data points Example 4: Using an Excel data file Example 5: A recursive example and the INT operator Example 6: Using aliases, limits and a Bayesian estimator