Infinity (Built-in Mathematica Symbol)

Infinity or \[Infinity] is a symbol that represents a positive infinite quantity.

Inner (Built-in Mathematica Symbol)

Inner[f, list_1, list_2, g] is a generalization of Dot in which f plays the role of multiplication and g of addition.

InterpolationOrder (Built-in Mathematica Symbol)

InterpolationOrder is an option for Interpolation, as well as ListLinePlot, ListPlot3D, ListContourPlot, and related functions, that specifies what order of interpolation to ...

Inverse (Built-in Mathematica Symbol)

Inverse[m] gives the inverse of a square matrix m.

IsomorphicGraphQ (Built-in Mathematica Symbol)

IsomorphicGraphQ[g_1, g_2] yields True if the graphs g_1 and g_2 are isomorphic, and False otherwise.

LetterQ (Built-in Mathematica Symbol)

LetterQ[string] yields True if all the characters in the string are letters, and yields False otherwise.

ListContourPlot3D (Built-in Mathematica Symbol)

ListContourPlot3D[array] generates a contour plot from a three-dimensional array of values. ListContourPlot3D[{{x_1, y_1, z_1, f_1}, {x_2, y_2, z_2, f_2}, ...}] generates a ...

Median (Built-in Mathematica Symbol)

Median[list] gives the median of the elements in list. Median[dist] gives the median of the symbolic distribution dist.

NumberQ (Built-in Mathematica Symbol)

NumberQ[expr] gives True if expr is a number, and False otherwise.

Ordering (Built-in Mathematica Symbol)

Ordering[list] gives the positions in list at which each successive element of Sort[list] appears. Ordering[list, n] gives the positions in list at which the first n elements ...