Edit > Complete Selection (Mathematica Menu Item)

Complete Selection completes a partially typed function name.

Edit > Find... (Mathematica Menu Item)

Find searches the current notebook for matches to the text contained in the Search for: field of the dialog box.

AnimationDirection (Built-in Mathematica Symbol)

AnimationDirection is an option which specifies the direction to run an animation.

Bookmarks (Built-in Mathematica Symbol)

Bookmarks is an option for Manipulate and related functions that gives a list of bookmark settings.

HoldAll (Built-in Mathematica Symbol)

HoldAll is an attribute which specifies that all arguments to a function are to be maintained in an unevaluated form.

ImageReflect (Built-in Mathematica Symbol)

ImageReflect[image] reverses image by top-bottom mirror reflection. ImageReflect[image, side] reverses image by reflecting it so that the specified side goes to the opposite ...

Superscript (Built-in Mathematica Symbol)

Superscript[x, y] is an object that formats as x^y.

$Language (Built-in Mathematica Symbol)

$Language is a list of strings which give the names of languages to use for messages.

Sequences of Operations (Mathematica Tutorial)

In doing a calculation with Mathematica, you usually go through a sequence of steps. If you want to, you can do each step on a separate line. Often, however, you will find it ...

Cases (Built-in Mathematica Symbol)

Cases[{e_1, e_2, ...}, pattern] gives a list of the e_i that match the pattern. Cases[{e_1, ...}, pattern -> rhs] gives a list of the values of rhs corresponding to the e_i ...