RandomImage (Built-in Mathematica Symbol)

RandomImage[max, {w, h}] gives an image of dimensions {w, h} with pseudorandom pixel values generated from a uniform distribution in the range 0 to max.RandomImage[{min, ...

Rational (Built-in Mathematica Symbol)

Rational is the head used for rational numbers.

ReplaceAll (Built-in Mathematica Symbol)

expr /. rules applies a rule or list of rules in an attempt to transform each subpart of an expression expr.

RootOfUnityQ (Built-in Mathematica Symbol)

RootOfUnityQ[a] yields True if a is a root of unity, and yields False otherwise.

RuleDelayed (Built-in Mathematica Symbol)

lhs :> rhs or lhs :> rhs represents a rule that transforms lhs to rhs, evaluating rhs only after the rule is used.

RunScheduledTask (Built-in Mathematica Symbol)

RunScheduledTask[expr] schedules and starts a task that will repeatedly evaluate expr once per second.RunScheduledTask[expr, time] schedules and starts a task that will ...

SatisfiabilityInstances (Built-in Mathematica Symbol)

SatisfiabilityInstances[bf] attempts to find a choice of variables that makes the Boolean function bf yield True.SatisfiabilityInstances[expr, {a_1, a_2, ...}] attempts to ...

SawtoothWave (Built-in Mathematica Symbol)

SawtoothWave[x] gives a sawtooth wave that varies from 0 to 1 with unit period.SawtoothWave[{min, max}, x] gives a sawtooth wave that varies from min to max with unit period.

SetPrecision (Built-in Mathematica Symbol)

SetPrecision[expr, p] yields a version of expr in which all numbers have been set to have precision p.

ShapiroWilkTest (Built-in Mathematica Symbol)

ShapiroWilkTest[data] tests whether data is normally distributed using the Shapiro\[Dash]Wilk test.ShapiroWilkTest[data, " property"] returns the value of " property".