$LicenseID (Built-in Mathematica Symbol)

$LicenseID is a string that gives the license ID under which Mathematica is being run.

$Urgent (Built-in Mathematica Symbol)

$Urgent gives the list of files and pipes to which urgent output from Mathematica is sent.

Data Manipulation (Mathematica Overview)

"How to" Topics Files, Streams, and External Operations Importing and Exporting

Expressions (Mathematica Overview)

Everything Is an Expression The Meaning of Expressions Special Ways to Input Expressions

Reading and Writing Mathematica Files (Mathematica Tutorial)

You can use files on your computer system to store definitions and results from Mathematica. The most general approach is to store everything as plain text that is ...

Two-Dimensional Expression Input (Mathematica Overview)

Moving through Expressions Selecting and Deleting in Expressions Typing Fractions

SWF (Mathematica Import/Export Format)

Registered MIME type: application/x-shockwave-flash Adobe/Macromedia Flash file format. Used for interactive and animated vector graphics, video and sound on the web. SWF is ...

Image (Built-in Mathematica Symbol)

Image[data] represents a raster image with pixel values given by the array data.Image[graphics] creates a raster image from a graphics object. Image[obj, options] gives an ...

Riffle (Built-in Mathematica Symbol)

Riffle[{e_1, e_2, ...}, x] gives {e_1, x, e_2, x, ...}. Riffle[{e_1, e_2, ...}, {x_1, x_2, ...}] gives {e_1, x_1, e_2, x_2, ...}. Riffle[list, x, n] yields a list in which ...

Logging MathLM (Mathematica Tutorial)

You can enable logging in two ways. The log file records messages as they occur, building up a detailed record of license activity over a period of time. Logging supports ...