NumberPadding (Built-in Mathematica Symbol)

NumberPadding is an option for NumberForm and related functions which gives strings to use as padding on the left- and right-hand sides of numbers.

NumberMultiplier (Built-in Mathematica Symbol)

NumberMultiplier is an option for NumberForm and related functions which gives the string to use as a multiplication sign in scientific notation.

$MaxMachineNumber (Built-in Mathematica Symbol)

$MaxMachineNumber is the largest machine-precision number that can be used on a particular computer system.

HarmonicNumber (Built-in Mathematica Symbol)

HarmonicNumber[n] gives the n\[Null]^th harmonic number H_n. HarmonicNumber[n, r] gives the harmonic number H_n^(r) of order r.

NumberFieldRootsOfUnity (Built-in Mathematica Symbol)

NumberFieldRootsOfUnity[a] gives the roots of unity for the field \[DoubleStruckCapitalQ][a] generated by the algebraic number a.

Complex Numbers (Mathematica Guide)

Mathematica has fundamental support for both explicit complex numbers and symbolic complex variables. All applicable mathematical functions support arbitrary-precision ...

SystemsModelDimensions (Built-in Mathematica Symbol)

SystemsModelDimensions[sys] gives the number of inputs and outputs of a StateSpaceModel or TransferFunctionModel object sys.

New in 6.0: Number Theory & Integer ... (Mathematica Guide)

InexactNumberQ (Built-in Mathematica Symbol)

InexactNumberQ[expr] returns True if expr is an inexact real or complex number, and returns False otherwise.

ExactNumberQ (Built-in Mathematica Symbol)

ExactNumberQ[expr] returns True if expr is an exact real or complex number, and returns False otherwise.