Chapter 7: Computation of Derivatives from their Definition

Introduction

We discuss ways to compute derivatives on a spreadsheet, with emphasis on repeating the symmetric approximation with exponentially decreasing d and extrapolating the results.

Topics

7.1  Introduction: the Obvious Approximation: f'(x) ~ (f(x+d) - f(x))/d

7.2  Round off Errors and the Derivative

7.3  The Symmetric Approximation: f'(x) ~ (f(x+d) - f(x-d)/(2d)

7.4  Extrapolating the Sequence of Answers