Both variants (F90) and F77 originals. - F90 [from here](https://people.sc.fsu.edu/~jburkardt/f_src/jacobi/jacobi.html) under the GNU LGPL - F77 [original](http://calgo.acm.org/[655.gz](http://calgo.acm.org/655.gz)) [from here](http://calgo.acm.org/) (under the [ACM CALGO license](https://www.acm.org/publications/policies/software-copyright-notice)) Adding interfaces to them would be good, especially for testing accuracy / speed, but the licensing needs to be handled carefully.
Both variants (F90) and F77 originals.
Adding interfaces to them would be good, especially for testing accuracy / speed, but the licensing needs to be handled carefully.