Wolfram Language & System 10.3 (2015)|Legacy Documentation
The built‐in functions D, Limit, Residue, and Series perform computations using symbolic and analytic methods. The functions ND, NLimit, NResidue, and NSeries, in this package, are the numerical versions of these functions.
NLimit — numerical limit of a function
ND — numerical derivative of a function at a point
EulerSum — numerical sum using Euler's transformation
NSeries — numerical series expansion of a function
NResidue — numerical residue of an expression near a specified point