TakeWhile[list, crit] gives elements e_i from the beginning of list, continuing so long as crit[e_i] is True.

UpperTriangularize[m] gives a matrix in which all but the upper triangular elements of m are replaced with zeros. UpperTriangularize[m, k] replaces with zeros only the ...

When you set up a graphics object in Mathematica, you typically give a list of graphical elements. You can include in that list graphics directives which specify how ...

Mathematica uses the Microsoft math recognizer that is built into Windows 7 to recognize handwritten mathematical expressions. This allows you to enter handwritten ...

Converting between symbols and their names. Here is the symbol x. Its name is a string.

Column of numbers or strings. Stores a list of numbers or strings as lines. Plain text format. Is essentially a single-column version of the "Table" format.

Registered MIME type: application/xhtml+xml XHTML markup language and file format. XML-based reformulation of HTML. XHTML is an acronym derived from Extensible Hypertext ...

Dashing[{r_1, r_2, ...}] is a two-dimensional graphics directive specifying that lines that follow are to be drawn dashed, with successive segments of lengths r_1, r_2, ... ...

Drop[list, n] gives list with its first n elements dropped. Drop[list, -n] gives list with its last n elements dropped. Drop[list, {n}] gives list with its n\[Null]^th ...

Tuples[list, n] generates a list of all possible n-tuples of elements from list. Tuples[{list_1, list_2, ...}] generates a list of all possible tuples whose i\[Null] ...