IMSL Numerical Libraries


The International Mathematics and Statistics Library is a commercial collection of software libraries that provide a wide range of numerical analysis functions. These libraries are implemented in programming languages such as C, Java, C#.NET, and Fortran. Additionally, a Python interface is available, making the library accessible to a broader range of developers and data scientists.

Version history

The first IMSL Library for the Fortran language was released in 1970, followed by a C-language version originally called C/Base in 1991, a Java-language version in 2002, and the C#-language version in 2004.
Several recent product releases have involved making IMSL Library functions available from Python. These releases are Python wrappers to IMSL C Library functions and PyIMSL Studio, a prototyping and production application development environment based on Python and the IMSL C Library. The PyIMSL wrappers were first released in August 2008. PyIMSL Studio was introduced in February 2009. PyIMSL Studio is available for download at no charge for non-commercial use or for commercial evaluation.
Current versions:

Platform availability

The IMSL Numerical Libraries are supported on various operating systems, hardware, and compilers.