Numerical differentiation - Wikipedia
https://en.wikipedia.org/wiki/Numerical_differentiation• http://mathworld.wolfram.com/NumericalDifferentiation.html• Numerical Differentiation Resources: Textbook notes, PPT, Worksheets, Audiovisual YouTube Lectures at Numerical Methods for STEM Undergraduate• ftp://math.nist.gov/pub/repository/diff/src/DIFF Fortran code for the numerical differentiation of a function using Neville's process to extrapolate from a sequence of simple polynomial approximations.