Before the advent of sophisticated programs capable of performing calculus symbolically, numerical differentiation and integration provided a means of solving seemingly intractable equations. Numerical methods can still be an efficient means of solving many such problems, but the real advantage of Numerical Calculus will always be in solving those problems that have no closed-form solution--and these are legion. This book is filled with practical examples, code, and spreadsheets. I trust you will find it useful. I assume that you already have a command of analytical calculus and so I will jump right in to the numerical.
