(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. . E-mail: . (1994-10-07)