StringQ
(Built-in Mathematica Symbol) StringQ[expr] gives True if expr is a string, and False otherwise.
LoadedJavaClasses[] returns a list of the classes currently loaded into Java by Mathematica.
BZIP2
(Mathematica Import/Export Format) MIME type: application/x-bzip2. BZIP2 compression method and file format. General-purpose lossless compression method. Occasionally used for archiving data on Unix systems ...
TagSet
(Built-in Mathematica Symbol) f /: lhs = rhs assigns rhs to be the value of lhs, and associates the assignment with the symbol f.
ClosenessCentrality[g] gives a list of closeness centralities for the vertices in the graph g.
int MLGetReal128 (MLINK link, mlextended_double *d) gets an extended-precision floating-point number from link and stores it in d.
The NIntegrate Explorer is a GUI that lets you do numerical quadrature using NIntegrate. It opens a tool that lets you enter an integrand, set a region, then modify and ...
RevolutionPlot3D has been added to the built-in Mathematica kernel.
file.m is a Mathematica package file.
CommonDefaultFormatTypes -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option that specifies default formats for newly created cells.