Krylov space solver in Fortran 2009: Beta version

Conclusions

Iterative-based inversion maps cleanly into an object-oriented framework. Vector, operator, and solver abstract classes can be built upon to solve nearly any inversion problem. The Fortran 2008 standard contains all of the object-oriented features needed to write an inversion library. The resulting inverse code is more verbose than the Fortran 90 approach but the added flexibility makes this an acceptable penalty.