$Output gives the list of files and pipes to which standard output from Mathematica is sent.

Mathematica creates a new symbol when you first enter a particular name. Sometimes it is useful to "intercept" the process of creating a new symbol. Mathematica provides ...

NotebookObject[fe, id] is an object that represents an open notebook in the front end.

Skeleton[n] represents a sequence of n omitted elements in an expression printed with Short or Shallow. The standard print form for Skeleton is <<n>>.

MenuStyle is an option for menu-generating constructs that specifies the style to use in displaying menu items.

If you have installed Mathematica in a location where multiple users can run it (for example, on a file server or multi-user machine), then you can set up systemwide defaults ...

While[test, body] evaluates test, then body, repetitively, until test first fails to give True.

FileNameSetter[name] represents a file name setter which displays as a Browse button and when clicked brings up a system file opening dialog, starting from the location ...

In Mathematica, a palette is just a notebook with a collection of controls such as buttons. A uniquely powerful consequence of Mathematica's unified design is that a symbolic ...

Here is one way to enter a particular expression. Here is another way to enter the same expression. With a notebook front end, you can also enter the expression directly in ...