OneIdentity (Built-in Mathematica Symbol)

OneIdentity is an attribute that can be assigned to a symbol f to indicate that f[x], f[f[x]], etc. are all equivalent to x for the purpose of pattern matching.

Operate (Built-in Mathematica Symbol)

Operate[p, f[x, y]] gives p[f][x, y]. Operate[p, expr, n] applies p at level n in the head of expr.

OwnValues (Built-in Mathematica Symbol)

OwnValues[x] gives the rule corresponding to any ownvalue defined for the symbol x.

RegularExpression (Built-in Mathematica Symbol)

RegularExpression["regex"] represents the generalized regular expression specified by the string " regex".

Residue (Built-in Mathematica Symbol)

Residue[expr, {z, z_0}] finds the residue of expr at the point z = z_0.

RogersTanimotoDissimilarity (Built-in Mathematica Symbol)

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

Roots (Built-in Mathematica Symbol)

Roots[lhs == rhs, var] yields a disjunction of equations which represent the roots of a polynomial equation.

RotateRight (Built-in Mathematica Symbol)

RotateRight[expr, n] cycles the elements in expr n positions to the right. RotateRight[expr] cycles one position to the right. RotateRight[expr, {n_1, n_2, ...}] cycles ...

ScientificForm (Built-in Mathematica Symbol)

ScientificForm[expr] prints with all real numbers in expr given in scientific notation. ScientificForm[expr, n] prints with numbers given to n-digit precision.

SemialgebraicComponentInstances (Built-in Mathematica Symbol)

SemialgebraicComponentInstances[ineqs, {x_1, x_2, ...}] gives at least one sample point in each connected component of the semialgebraic set defined by the inequalities ineqs ...