based on an earlier version of the Wolfram Language.
Mathematica notebooks include all the usual features of a top-quality word-processing system, plus many additional special capabilities. In all, there are over a thousand formatting and styling options, all accessible both from menus and at a programmatic level. Mathematica notebooks have an underlying symbolic structure that allows full markup, cascading stylesheets, and the ability to immediately restyle a document. Notebooks can be optimized not only for interactive use, but also for export to web and print media.
Format ► — main menu for formatting
Ctrl+_ () ▪ Ctrl+/ () ▪ Ctrl+2 () ▪ EscaEsc () ▪ ...
Drawing Tools — change properties of a graphic
Style — specify style options for any expression, including graphics
Option Inspector — access to formatting & styling options
Show Expression — toggle any cell to underlying symbolic expression form