Downloads - NAG Fortran Library - FLMI6261FL

Apple Intel-based Mac (Mac OS X) 64-bit systems

Specific download information:

  • Mac OS X 10.12.2 (Sierra) or compatible
  • GNU gfortran compiler 6.3 or compatible (excluding v. 7.x)
  • File size of Fortran Library (includes Library Manual)
    242 MB ; 254,149,815 bytes
  • NAG Product Code: FLMI6261FL
  • Mark 26.1


The software is provided as an Apple disk image (dmg) file.

Double click on FLMI6261FL.dmg to mount the disk image, then double click on install.command and follow the instructions to install the Library software and (optionally) the Library Manual.

For further installation instructions, please refer to the Installer's Note, Users' Note, and Supplementary Information.

Licence key

To enable the use of your NAG software you will need a relevant licence key. Instructions for obtaining a licence key are included in the products Installer's Note. Alternatively you can complete the ‘Request a Licence Key’ web form here. If you've already been supplied with a licence key from our Support Desk then you will not need to complete this form/request a key. 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.