$ParentLink is the MathLink LinkObject currently used for input and output by the Mathematica kernel in a particular session.
$TimeUnit gives the minimum time interval in seconds recorded on your computer system.
MathLink allows you to call an external program from within Mathematica even when that program is running on a remote computer. Typically, you need to start the program ...
The systems of equations that govern certain phenomena (in electrical circuits, chemical kinetics, etc.) contain a combination of differential equations and algebraic ...
Unicode: 000A. Raw operator. Inserted whenever a raw newline is entered on the keyboard. Forces a line break in an expression, fixing the indenting level at the time when the ...
"PreferencesDialog" is a front end token that opens the Preferences dialog to view and edit preferences, options, and system settings.
ExternalDataCharacterEncoding is a global option that specifies the character encoding used in reading and writing plain text data outside of Mathematica.
NotebookBrowseDirectory is a global option that determines the current working directory.
PrintingCopies is an option for notebooks that specifies the number of copies of a notebook printed when a print command is given.
SetOptions[s, name_1 -> value_1, name_2 -> value_2, ...] sets the specified default options for a symbol s. SetOptions[stream, ...] or SetOptions["name", ...] sets options ...