Mathematica allows almost every aspect of sessions to be customized, under full programmatic control.
Edit Stylesheet edits the style definitions for the current notebook.
EvaluationNotebook[] gives the notebook in which this function is being evaluated.
FrameMargins is an option for objects that can be displayed with frames which specifies the absolute margins in printer's points to leave inside the frame.
InputAliases is an option for cells and notebooks which specifies additional Esc\[ThinSpace]name\[ThinSpace]Esc aliases to be allowed on input.
Out
(Built-in Mathematica Symbol) % n or Out[n] is a global object that is assigned to be the value produced on the n\[Null]^th output line. % gives the last result generated. %% gives the result before last. ...
Wolfram LibraryLink provides a powerful way to connect external code to Mathematica, enabling high-speed and memory-efficient execution. It does this by allowing dynamic ...
LibraryFunction[args] represents a function that has been loaded from a Wolfram Library.
LibraryFunctionUnload[fun] unloads a LibraryFunction so that it cannot be used.