RadicalBox (Built-in Mathematica Symbol)

RadicalBox[x, n] is a low-level box construct that represents the displayed object Power[x, (n)^-1] in notebook expressions.

Rationals (Built-in Mathematica Symbol)

Rationals represents the domain of rational numbers, as in x \[Element] Rationals.

ResetScheduledTask (Built-in Mathematica Symbol)

ResetScheduledTask[obj] resets scheduled task object obj to the original parameter values.ResetScheduledTask[obj, timespec] resets scheduled task timing to ...

RidgeFilter (Built-in Mathematica Symbol)

RidgeFilter[image] computes a measure for the presence of a ridge for each pixel in image.RidgeFilter[image, \[Sigma]] uses the specified ridge scale \[Sigma].

RogersTanimotoDissimilarity (Built-in Mathematica Symbol)

RogersTanimotoDissimilarity[u, v] gives the Rogers\[Dash]Tanimoto dissimilarity between Boolean vectors u and v.

SimilarityRules (Built-in Mathematica Symbol)

SimilarityRules is an option for functions such as SequenceAlignment that gives a list of rules for similarity scores to assume between pairs of elements.

SphericalHankelH1 (Built-in Mathematica Symbol)

SphericalHankelH1[n, z] gives the spherical Hankel function of the first kind h_n^(1)(z).

SpheroidalS1Prime (Built-in Mathematica Symbol)

SpheroidalS1Prime[n, m, \[Gamma], z] gives the derivative with respect to z of the radial spheroidal function S_n^m, (1)(\[Gamma], z) of the first kind.

SpheroidalS2Prime (Built-in Mathematica Symbol)

SpheroidalS2Prime[n, m, \[Gamma], z] gives the derivative with respect to z of the radial spheroidal function S_n^m, (2)(\[Gamma], z) of the second kind.

SquaresR (Built-in Mathematica Symbol)

SquaresR[d, n] gives the number of ways r_d (n) to represent the integer n as a sum of d squares.