Replace (Built-in Mathematica Symbol)

Replace[expr, rules] applies a rule or list of rules in an attempt to transform the entire expression expr. Replace[expr, rules, levelspec] applies rules to parts of expr ...

FrontEndExecute (Built-in Mathematica Symbol)

FrontEndExecute[expr] sends expr to be executed by the Mathematica front end.

OpenRead (Built-in Mathematica Symbol)

OpenRead["file"] opens a file to read data from, and returns an InputStream object.

UnderscriptBox (Built-in Mathematica Symbol)

UnderscriptBox[x, y] is the low-level box representation for UnderscriptBox[x, y] in notebook expressions.

Defining Custom Notation (Mathematica Guide)

Mathematica's unified symbolic architecture allows arbitrary extensibility in the output and input of notation.

AutoScroll (Built-in Mathematica Symbol)

AutoScroll is an option to SelectionMove and related functions that specifies whether a notebook should automatically be scrolled to display the current selection.

ClearSystemCache (Built-in Mathematica Symbol)

ClearSystemCache[] clears internal system caches of stored results.

FrontEndTokenExecute (Built-in Mathematica Symbol)

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

NullRecords (Built-in Mathematica Symbol)

NullRecords is an option for Read and related functions which specifies whether null records should be taken to exist between repeated record separators.

SelectionAnimate (Built-in Mathematica Symbol)

SelectionAnimate[notebook] animates graphics in the current selection in a notebook. SelectionAnimate[notebook, t] animates graphics for t seconds.