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Overview of IDL Syntax

This reference is a complete listing of all built-in IDL functions, procedures, statements, executive commands, and objects, collectively referred to as "commands." Every IDL language element that can be used either at the command line or in a program is listed alphabetically. A description of each routine follows its name.


Note
Descriptions of Scientific Data Formats routines (CDF_*, EOS_*, HDF_*, and NCDF_* routines) can be found in the Scientific Data Formats book.

Routines written in the IDL language are noted as such, and the location of the .pro file within the IDL distribution is specified. You may wish to inspect the IDL source code for some of these routines to gain further insight into their inner workings.

Conventions used in this reference guide are described below.

  IDL Online Help (March 06, 2007)