Unique[] generates a new symbol, whose name is of the form $nnn. Unique[x] generates a new symbol, with a name of the form x$nnn. Unique[{x, y, ...}] generates a list of new ...

Converting power series to normal expressions. Power series in Mathematica are represented in a special internal form, which keeps track of such attributes as their expansion ...

Type Ctrl+DynamicBox[If[$OperatingSystem === MacOSX, T, D], ImageSizeCache -> {9., {0., 8.}}] or choose Graphics > Drawing Tools. For more information on each tool, click the ...

GXL graph data format. Used for the storage and exchange of graphs. GXL is an acronym derived from Graph Exchange Language. XML-based format. Represents typed, attributed, ...

NumericQ[expr] gives True if expr is a numeric quantity, and False otherwise.

Hold[expr] maintains expr in an unevaluated form.

lhs := rhs assigns rhs to be the delayed value of lhs. rhs is maintained in an unevaluated form. When lhs appears, it is replaced by rhs, evaluated afresh each time.

RuntimeOptions is an option for Compile that specifies runtime settings for the compiled function it creates.

One of the unique strengths of Mathematica's core language is its powerful and succinct—yet highly readable—symbolic pattern language. Convenient both for immediate use in ...

The Mathematica compiler provides an important way both to speed up and also to work with Mathematica computations. Introduction Compiled Function Operation