PrimeOmega (Built-in Mathematica Symbol)

PrimeOmega[n] gives the number of prime factors counting multiplicities \[CapitalOmega](n) in n.

$ProcessorCount (Built-in Mathematica Symbol)

$ProcessorCount gives the number of processor cores available on the computer system on which Mathematica is being run.

$KernelCount (Built-in Mathematica Symbol)

$KernelCount gives the number of subkernels available for parallel computations.

FiniteAbelianGroupCount (Built-in Mathematica Symbol)

FiniteAbelianGroupCount[n] gives the number of finite Abelian groups of order n.

Abs (Built-in Mathematica Symbol)

Abs[z] gives the absolute value of the real or complex number z.

$MaxPiecewiseCases (Built-in Mathematica Symbol)

$MaxPiecewiseCases gives the maximum number of cases to allow in explicit Piecewise objects generated by expanding any single piecewise function.

DigitBlock (Built-in Mathematica Symbol)

DigitBlock is an option for NumberForm and related functions that specifies the maximum length of blocks of digits between breaks.

StirlingS2 (Built-in Mathematica Symbol)

StirlingS2[n, m] gives the Stirling number of the second kind \[ScriptCapitalS]_n^(m).

Numerical Functions (Mathematica Guide)

Throughout Mathematica there is support not only for approximate real numbers, but also for exact numbers represented in algebraic or symbolic form. Functions like Floor, ...

Testing Expressions (Mathematica Guide)

Mathematica symbolic expressions can represent an immense range of types of objects. Mathematica provides a rich collection of functions to test expressions. Functions that ...