SquaredEuclideanDistance[u, v] gives the squared Euclidean distance between vectors u and v.

StartOfString represents the start of a string for purposes of matching in StringExpression.

Mathematica's symbolic architecture immediately defines a serializable representation for any Mathematica data or program—which can then readily be stored in a file.

FrontEndTokenExecute["cmd"] executes the specified front end command token, typically corresponding to a front end menu item.

Item[expr, options] represents an item within constructs such as Grid, Overlay, and Manipulate that displays with expr as the content, and with the specified options applied ...

PlusMinus[x] displays as \[PlusMinus]x.PlusMinus[x, y, ...] displays as x \[PlusMinus] y \[PlusMinus] ....

RowMinHeight is an option for the low-level function GridBox that specifies the minimum total height in units of font size that should be allowed for each row.

TokenWords is an option for Read and related functions which gives a list of token words to be used to delimit words.

Now that we have introduced the basic features of patterns in Mathematica, we can use them to give a more or less complete example. We will show how you could define your own ...

Using the objects described in "Introduction to Patterns", you can set up patterns for many kinds of expressions. In all cases, you must remember that the patterns must ...