When you do long calculations, it is often convenient to give names to your intermediate results. Just as in standard mathematics, or in other computer languages, you can do ...
Introduction Finding Expressions That Match a Pattern Naming Pieces of Patterns
Dynamic
(Built-in Mathematica Symbol) Dynamic[expr] represents an object that displays as the dynamically updated current value of expr. If the displayed form of Dynamic[expr] is interactively changed or edited, ...
Unicode: 2318. Alias: Esc cl Esc. Letter-like form. Used on Macintosh and other computers to indicate command keys.
Unicode: F76A. Alias: Esc cmd Esc. Letter-like form. Representation of the Cmd or Alt key on a keyboard.
Unicode: F763. Alias: Esc ctrl Esc. Letter-like form. Representation of the Ctrl key on a keyboard.
Unicode: F3A3. Alias: Esc nl Esc. Raw operator. Forces a line break in an expression, maintaining the correct indenting level based on the environment of the line break.
\[Null]
(Mathematica Character Name) Unicode: F3A0. Alias: Esc null Esc. Letter-like form. Can be used to place subscripts and superscripts without having a visible base.
Unicode: 0040. Raw operator. Equivalent to the ordinary ASCII character with code 64.
Unicode: 0060. Raw operator. Equivalent to the ordinary ASCII character with code 96.