Calculus lets you approximate complicated functions with power series. Mathematica lets you generate and work with power series for a huge range of functions.
BellB
(Built-in Mathematica Symbol) BellB[n] gives the Bell number B_n. BellB[n, x] gives the Bell polynomial B_n (x).
The Mathematica compiler provides an important way both to speed up and also to work with Mathematica computations. Introduction Compiled Function Operation
The first argument given to DSolve is the differential equation, the second argument is the unknown function, and the last argument identifies the independent variable. Here ...
MorletWavelet[] represents a Morlet wavelet.
Parent
(Combinatorica Package Symbol) Parent is a tag used as an argument to the function AllPairsShortestPath in order to inform this function that information about parents in the shortest paths is also wanted.
AddOnHelpPath is a global option that specifies which directories are searched for additional help files used within the help system.
ConfigurationPath is a global option that specifies which directories are searched for systemwide configuration information.
PreferencesPath is a global option that specifies which directories are searched for user-specific settings when Mathematica is started.
$Inspector is a global variable which gives a function to apply when the inspector is invoked from an interrupt menu.