$CurrentLink is the LinkObject representing the MathLink connection for an external program currently being installed or being called.

$MaxPrecision gives the maximum number of digits of precision to be allowed in arbitrary-precision numbers.

$MessageList is a global variable that gives a list of the names of messages generated during the evaluation of the current input line.

An image is equivalent to its symbolic expression. You can operate on an image as you would on a symbolic expression. This input produces some disks. Type // InputForm after ...

While most built-in Mathematica functions follow the standard evaluation procedure, some important ones do not. For example, most of the Mathematica functions associated with ...

MathLink allows you to run external programs under whatever debugger is provided in your software environment. MathLink-compatible programs are typically set up to take ...

Finding lines that contain specified text. Here is a file containing some text. This returns a list of all the lines in the file containing the text is.

Type the expression that will have an underscript. Type x. Create an underscript by pressing the Control key and the 4 key at the same time.

The aim of these tutorials is to provide a self-contained working guide for solving different types of problems with DSolve. The first step in using DSolve is to set up the ...

The functions described in "Textual Input and Output Overview" determine how expressions should be formatted when they are printed, but they do not actually cause anything to ...