ContraharmonicMean (Built-in Mathematica Symbol)

ContraharmonicMean[list] gives the contraharmonic mean of the values in list.ContraharmonicMean[list, p] gives the order p Lehmer contraharmonic mean.

DeclarePackage (Built-in Mathematica Symbol)

DeclarePackage["context`", {"name_1", "name_2", ...}] declares that Needs["context`"] should automatically be executed if a symbol with any of the specified names is ever ...

DiracComb (Built-in Mathematica Symbol)

DiracComb[x] represents the Dirac comb function giving a delta function at every integer point. DiracComb[x_1, x_2, ...] represents the multidimensional Dirac comb function.

DirectoryQ (Built-in Mathematica Symbol)

DirectoryQ["name"] gives True if the directory with the specified name exists, and gives False otherwise.

EnterTextPacket (Built-in Mathematica Symbol)

EnterTextPacket[string] is a MathLink packet that requests the parsing and evaluation of string as an expression.

EvaluationNotebook (Built-in Mathematica Symbol)

EvaluationNotebook[] gives the notebook in which this function is being evaluated.

FieldSize (Built-in Mathematica Symbol)

FieldSize is an option for InputField, PopupMenu, and related functions that specifies the size of the field allowed for input or contents.

FileExistsQ (Built-in Mathematica Symbol)

FileExistsQ["name"] gives True if the file with the specified name exists, and gives False otherwise.

GeoDestination (Built-in Mathematica Symbol)

GeoDestination[pos, {d, \[Alpha]}] gives the geodetic position reached by going distance d in azimuthal direction \[Alpha] from pos.

IgnoreCase (Built-in Mathematica Symbol)

IgnoreCase is an option for string manipulation and searching functions that specifies whether lowercase and uppercase letters should be treated as equivalent.