(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)