# About IDL Analyst

IDL Analyst combines the power of IDL with the IMSL C Numerical Library provided by Visual Numerics, Inc. The addition of the IMSL library gives IDL users access to an extensive and powerful set of mathematical and statistical analysis routines via the standard IDL programmer’s interface. If you have used the IMSL libraries when creating C or FORTRAN applications, much of the functionality in IDL Analyst will be familiar. But because the IMSL functionality is exposed via an IDL interface, no linking or compiling is required.

Use the IMSL routines as you would any other IDL function or procedure. IDL Analyst provides a subset of the full IMSL C Numerical Library version 5. See “Functional List of IMSL Routines” for a complete listing of the included routines.

## Licensing

IDL Analyst is a separately licensed IDL module. IDL applications that incorporate IMSL functionality will not function if the IDL Analyst license is not present. This means that if you distribute an application that uses IMSL functionality, the end-users of your application must also have an IDL Analyst license. For information on runtime licensing of IMSL functionality, contact your Exelis VIS sales representative.