Downloads - NAG Library for C - CLW32261EL

Windows 32-bit x86 systems and compatible

Specific download information:

  • Using Intel 32-bit C++ Compiler, version 17.0.4 and compatible
    Or Microsoft 32-bit C/C++ compiler, version 19.10 or compatible
  • Visual Studio 2015 and 2017
  • File size of C Library
    375 MB ; 393,474,360 bytes
  • File size of Documentation
    105 MB ; 110,950,184 bytes
  • NAG Product Code: CLW32261EL
  • Mark 26.1


After downloading the file please run clw32261el_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_cl26-1_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.