NonPositive (Built-in Mathematica Symbol)

NonPositive[x] gives True if x is a non-positive number.

NotebookBrowseDirectory (Built-in Mathematica Symbol)

NotebookBrowseDirectory is a global option that determines the current working directory.

NotebookDynamicExpression (Built-in Mathematica Symbol)

NotebookDynamicExpression is an option for notebooks that specifies an expression to be dynamically updated whenever that notebook is open.

OutputAutoOverwrite (Built-in Mathematica Symbol)

OutputAutoOverwrite is an option for notebooks that specifies whether the output of a command should replace any existing output from a previous evaluation.

OverscriptBoxOptions (Built-in Mathematica Symbol)

OverscriptBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option that specifies the style and display of OverscriptBox constructs.

PageFooterLines (Built-in Mathematica Symbol)

PageFooterLines is an option for notebooks that specifies whether a horizontal line is inserted at the bottom of each page when the notebook is printed.

PageHeaderLines (Built-in Mathematica Symbol)

PageHeaderLines is an option for notebooks that specifies whether a horizontal line is inserted at the top of each page when the notebook is printed.

PalettePath (Built-in Mathematica Symbol)

PalettePath is a global option that specifies which directories Mathematica searches for palettes on startup.

Positive (Built-in Mathematica Symbol)

Positive[x] gives True if x is a positive number.

PrintingCopies (Built-in Mathematica Symbol)

PrintingCopies is an option for notebooks that specifies the number of copies of a notebook printed when a print command is given.