• $ContextPath is a global variable that gives a list of contexts, after $Context, to search in trying to find a symbol that has been entered.
• Each context is specified by a string of the form "name`".
• The elements of $ContextPath are tested in order to try and find a context containing a particular symbol.
• $ContextPath is a rough analog for Mathematica symbols of the "search path" for files in many operating systems.
• New in Version 1.