Work with Rules (Mathematica How To)

Rules are a key part of Mathematica 's powerful expression transformation language. These "How tos" give step-by-step instructions for using rules in Mathematica .

$TimeUnit (Built-in Mathematica Symbol)

$TimeUnit gives the minimum time interval in seconds recorded on your computer system.

Factorial (Built-in Mathematica Symbol)

n! gives the factorial of n.

Numerical Calculus Package (Numerical Calculus Package Guide)

The built-in functions D, Limit, Residue and Series perform computations using symbolic and analytic methods. The functions ND, NLimit, NResidue and NSeries, in this package, ...

ComplexExpand (Built-in Mathematica Symbol)

ComplexExpand[expr] expands expr assuming that all variables are real. ComplexExpand[expr, {x_1, x_2, ...}] expands expr assuming that variables matching any of the x_i are ...

GCD (Built-in Mathematica Symbol)

GCD[n_1, n_2, ...] gives the greatest common divisor of the n_i.

SlotSequence (Built-in Mathematica Symbol)

## represents the sequence of arguments supplied to a pure function. ## n represents the sequence of arguments supplied to a pure function, starting with the ...

Prime (Built-in Mathematica Symbol)

Prime[n] gives the n\[Null]^th prime number.

ImpliesQ (Experimental Package Symbol)

ImpliesQ[expr_1, expr_2] tests whether the expression expr_1 implies expr_2.

ReturnPacket (Built-in Mathematica Symbol)

ReturnPacket[expr] is a MathLink packet that contains the expression expr, the result of an EvaluatePacket evaluation.