New creates a new notebook, slide show, Demonstration, package, or text document.

p_1 | p_2 | ... is a pattern object which represents any of the patterns p_i.

Majority[e_1, e_2, ...] gives True if the majority of the e_i are True, and False if the majority are False.

StringQ[expr] gives True if expr is a string, and False otherwise.

WindowFrame is a notebook option that specifies the type of frame to draw around the window in which the notebook is displayed on the screen.

Mathematica usually works by taking whatever input you give, and then processing it. Sometimes, however, you may want to have a program you write explicitly request more ...

 

"Radical" is a front end token that creates a SqrtBox and fills the base with a selection.

Cell Properties opens a submenu to select and toggle cell properties.

Page Break inserts a page break at the horizontal I-beam.