$CreationDate gives the date and time at which the particular release of the Mathematica kernel you are running was created.

$LicenseExpirationDate is a date list that gives the expiration date for the license under which Mathematica is being run.

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

Mathematica's matrix operations handle both numeric and symbolic matrices, automatically accessing large numbers of highly efficient algorithms. Mathematica uses ...

For minimization problems for which the objective function is a sum of squares, it is often advantageous to use the special structure of the problem. Time and effort can be ...

$VersionNumber is a real number which gives the current Mathematica kernel version number, and increases in successive versions.

Install opens a dialog to install a chosen Mathematica palette, stylesheet, package, or other item in the correct location.

Mathematica has special sparse-array technology for efficiently handling arrays with literally astronomical numbers of elements when only a small fraction of the elements are ...

The Main Loop Dialogs Date and Time Functions

$MachineAddresses gives a list of strings specifying the current IP addresses associated with the computer on which Mathematica is being run.