Trace (Built-in Mathematica Symbol)

Trace[expr] generates a list of all expressions used in the evaluation of expr. Trace[expr, form] includes only those expressions which match form. Trace[expr, s] includes ...

UnderBar (Built-in Mathematica Symbol)

UnderBar[expr] displays with a bar under expr.

$CommandLine (Built-in Mathematica Symbol)

$CommandLine is a list of strings giving the elements of the original operating system command line with which Mathematica was invoked.

$HomeDirectory (Built-in Mathematica Symbol)

$HomeDirectory gives your "home" directory.

$IgnoreEOF (Built-in Mathematica Symbol)

$IgnoreEOF specifies whether Mathematica should terminate when it receives an end-of-file character as input.

$LicenseServer (Built-in Mathematica Symbol)

$LicenseServer is a string that gives the name of the license server that is currently authorizing Mathematica to be run.

$MachineType (Built-in Mathematica Symbol)

$MachineType is a string giving the general type of computer on which Mathematica is being run.

$MessagePrePrint (Built-in Mathematica Symbol)

$MessagePrePrint is a global variable whose value, if set, is applied to expressions before they are included in the text of messages.

$OutputSizeLimit (Built-in Mathematica Symbol)

$OutputSizeLimit specifies the maximum size in bytes of expressions that will automatically be output in their entirety in a Mathematica notebook.

$ProcessorType (Built-in Mathematica Symbol)

$ProcessorType is a string giving the architecture of the processor on which Mathematica is being run.