ReflectionMatrix (Built-in Mathematica Symbol)

ReflectionMatrix[v] gives the matrix that represents reflection of points in a mirror normal to the vector v.

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.

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.

ScalingMatrix (Built-in Mathematica Symbol)

ScalingMatrix[{s_x, s_y, ...}] gives the matrix corresponding to scaling by a factor s_i along each coordinate axis.ScalingMatrix[s, v] gives the matrix corresponding to ...

Shortest (Built-in Mathematica Symbol)

Shortest[p] is a pattern object that matches the shortest sequence consistent with the pattern p.

Short (Built-in Mathematica Symbol)

Short[expr] prints as a short form of expr, less than about one line long. Short[expr, n] prints as a form of expr about n lines long.

SpanFromLeft (Built-in Mathematica Symbol)

SpanFromLeft is a symbol that can appear at a particular position in a Grid or related construct to indicate that the corresponding position is occupied by a spanning element ...

SphericalBesselJ (Built-in Mathematica Symbol)

SphericalBesselJ[n, z] gives the spherical Bessel function of the first kind j_n (z).

SphericalBesselY (Built-in Mathematica Symbol)

SphericalBesselY[n, z] gives the spherical Bessel function of the second kind y_n (z).

SphericalHankelH2 (Built-in Mathematica Symbol)

SphericalHankelH2[n, z] gives the spherical Hankel function of the second kind h_n^(2)(z).