ColumnsEqual is an option for the low-level function GridBox which specifies whether all columns in the grid should be assigned equal width.
DeleteDirectory["dir"] deletes the specified directory.
End
(Built-in Mathematica Symbol) End[] returns the present context, and reverts to the previous one.
FischerGroupFi22[] represents the sporadic simple Fischer group Fi_22.
FischerGroupFi23[] represents the sporadic simple Fischer group Fi_23.
GridFrame is an option for grids that specifies whether a surrounding frame is drawn.
Hyphenation is an option for Cell that specifies whether to allow hyphenation for words of text.
InitializationCellEvaluation is an option for notebooks that specifies whether initialization cells in a notebook are automatically evaluated when the notebook is opened.
Install
(Built-in Mathematica Symbol) Install["name"] starts a MathLink-compatible external program and installs Mathematica definitions to call functions in it.
ItemAspectRatio is an option for GraphicsGrid which specifies the ratio of height to width for the regions in which items are placed in the graphics grid.