Input Syntax (Mathematica Tutorial)

Typical ways to enter characters. All printable ASCII characters can be entered directly. Those that are not alphanumeric are assigned explicit names in Mathematica, allowing ...

Applying Functions to Parts of ... (Mathematica Tutorial)

If you have a list of elements, it is often important to be able to apply a function separately to each of the elements. You can do this in Mathematica using Map. This ...

Introduction to Patterns (Mathematica Tutorial)

Patterns are used throughout Mathematica to represent classes of expressions. A simple example of a pattern is the expression f[x_]. This pattern represents the class of ...

Complement (Built-in Mathematica Symbol)

Complement[e_all, e_1, e_2, ...] gives the elements in e_all which are not in any of the e_i.

MatrixQ (Built-in Mathematica Symbol)

MatrixQ[expr] gives True if expr is a list of lists or a two-dimensional SparseArray object that can represent a matrix, and gives False otherwise. MatrixQ[expr, test] gives ...

Set (Built-in Mathematica Symbol)

lhs = rhs evaluates rhs and assigns the result to be the value of lhs. From then on, lhs is replaced by rhs whenever it appears. {l_1, l_2, ...} = {r_1, r_2, ...} evaluates ...

Streams (Built-in Mathematica Symbol)

Streams[] gives a list of all streams that are currently open. Streams["name"] lists only streams with the specified name.

Handling Arrays of Data (Mathematica Guide)

Mathematica routinely handles huge arrays of numeric, symbolic, textual, or any other data, with any dimension or structure. Arrays are fully integrated into Mathematica's ...

Length (Built-in Mathematica Symbol)

Length[expr] gives the number of elements in expr.

Accumulate (Built-in Mathematica Symbol)

Accumulate[list] gives a list of the successive accumulated totals of elements in list.