Interactive Data Language (IDL) A commercial {array}-oriented language with numerical analysis and display features, first released in 1977. It supports interactive {reduction}, analysis, and {visualisation} of scientific data. It is sold by {Research Systems, Inc.} Version: 3.6.1 runs under {Unix}, {MS-DOS}, {MS Windows}, {VAX}/{VMS} and {Macintosh}. Not to be confused with any of the other {IDLs}. (ftp://gateway.rs.inc.com/pub/idl). E-mail: <[email protected]>. (1994-10-07)