Downloads - NAG Library for C - CLW6I262EL

Windows x64 systems and compatible (including AMD64)

Specific download information:

  • Using Intel C++ Compiler Intel(R) 64, version 18.0.3 and compatible
    Or Microsoft 64-bit C/C++ compiler, version 19.12 or compatible
  • Visual Studio 2017
  • Using 32-bit integers
  • File size of C Library
    587 MB ; 616,018,552 bytes
  • File size of Documentation
    15.3 MB ; 16,115,032 bytes
  • NAG Product Code: CLW6I262EL
  • Mark 26.2
  • Includes AD Library


After downloading the file please run clw6i262el_setup.exe to install the NAG Library for C.

For implementation specific information, refer to the Installer's Note, Users' Note and Supplementary Information.


You can access the documentation via our website or you can download the self-extracting executable. After downloading run setup_mk26-2_manual.exe to install the Library Manual.

Licence key

To enable the use of your NAG software you will need a relevant licence key. If you have not already been supplied with a licence key from our Support Desk then you will need to complete the ‘Request a Licence Key’ web form here or instructions for obtaining a licence key are included in the products Installer's Note. In the event of difficulty please contact your NAG Technical Support Service.

Trial Request

For more information on trialling NAG software click here

Product Purchasing

The product can be purchased by contacting one of our offices.