Links[] gives a list of all MathLink connections that are currently open. Links[patt] lists only links whose names match the specified string pattern.

ListLogLinearPlot[{{x_1, y_1}, {x_2, y_2}, ...}] makes a log-linear plot of the specified list of x and y values.ListLogLinearPlot[{list_1, list_2, ...}] plots several lists ...

ListLogLogPlot[{{x_1, y_1}, {x_2, y_2}, ...}] makes a log-log plot of the specified list of x and y values.ListLogLogPlot[{list_1, list_2, ...}] plots several lists of values.

MultilaunchWarning is a global option that specifies whether a warning is given when you try to modify user preferences while running two copies of Mathematica simultaneously.

NotebookFileName[] gives the file name of the current evaluation notebook. NotebookFileName[nb] gives the file name for the notebook specified by nb.

NotebookInformation[] gives a list of properties of the current evaluation notebook.NotebookInformation[notebook] gives a list of properties for the specified notebook.

Null is a symbol used to indicate the absence of an expression or a result. It is not displayed in ordinary output. When Null appears as a complete output expression, no ...

PadLeft[list, n] makes a list of length n by padding list with zeros on the left. PadLeft[list, n, x] pads by repeating the element x. PadLeft[list, n, {x_1, x_2, ...}] pads ...

Placeholder[name] represents a placeholder labeled with name that indicates a place to type.Placeholder[] gives the empty placeholder \[Placeholder].

PrincipalValue is an option for Integrate that specifies whether the Cauchy principal value should be found for a definite integral.