PlotLegend is an option for Plot, ListPlot, and related functions that assigns text to lines in a 2D plot to create a legend for that plot.

Ellipsoid[{x_1, ..., x_p}, {r_1, ..., r_p}] represents a p-dimensional ellipsoid centered at the point {x_1, ..., x_p} with semi-axis radii r_i aligned with the coordinate ...

In catering to the fine points of mathematical typesetting and notational clarity, Mathematica provides a variety of special variant forms of letters.

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

expr /. rules applies a rule or list of rules in an attempt to transform each subpart of an expression expr.

Mathematica contains some powerful primitives for making structural changes to expressions. You can use these primitives both to implement mathematical properties such as ...

Mathematica notebooks consist of sequences of cells, which can be nested. The hierarchy of cells serves as a structure for organizing information in a notebook as well as ...

Mathematica provides a simple and consistent method for accessing and using files. In addition to inserting a file path that is specific to your operating system, Mathematica ...

MemberQ[list, form] returns True if an element of list matches form, and False otherwise. MemberQ[list, form, levelspec] tests all parts of list specified by levelspec.

Mathematica is available for Windows, Linux, and Mac OS X. For a complete list of platform availability, visit www.wolfram.com/mathematica/features/system-requirements.html. ...