PseudoInverse (Built-in Mathematica Symbol)

PseudoInverse[m] finds the pseudoinverse of a rectangular matrix.

RandomChoice (Built-in Mathematica Symbol)

RandomChoice[{e_1, e_2, ...}] gives a pseudorandom choice of one of the e_i. RandomChoice[list, n] gives a list of n pseudorandom choices. RandomChoice[list, {n_1, n_2, ...}] ...

Rectangle (Built-in Mathematica Symbol)

Rectangle[{x_min, y_min}, {x_max, y_max}] is a two-dimensional graphics primitive that represents a filled rectangle, oriented parallel to the axes. Rectangle[{x_min, y_min}] ...

RegionPlot3D (Built-in Mathematica Symbol)

RegionPlot3D[pred, {x, x_min, x_max}, {y, y_min, y_max}, {z, z_min, z_max}] makes a plot showing the three-dimensional region in which pred is True.

RGBColor (Built-in Mathematica Symbol)

RGBColor[red, green, blue] is a graphics directive specifying that objects that follow are to be displayed, if possible, in the color given. RGBColor[r, g, b, a] specifies ...

RootIntervals (Built-in Mathematica Symbol)

RootIntervals[{poly_1, poly_2, ...}] gives a list of isolating intervals for the real roots of any of the poly_i, together with a list of which polynomials actually have each ...

StandardForm (Built-in Mathematica Symbol)

StandardForm[expr] prints as the standard Mathematica two-dimensional representation of expr.

StarGraph (Built-in Mathematica Symbol)

StarGraph[n] gives the star graph with n vertices S_n.

StringCases (Built-in Mathematica Symbol)

StringCases["string", patt] gives a list of the substrings in " string" that match the string expression patt. StringCases["string", lhs -> rhs] gives a list of the values of ...

TuranGraph (Built-in Mathematica Symbol)

TuranGraph[n, k] gives the k-partite Turán graph with n vertices T n, k.