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The Fortran Wiki is an open venue for discussing all aspects of the Fortran programming language and scientific computing.
Feel free to use the Sandbox to experiment. The HowTo contains more information on getting started. For questions, see Fortran Wiki discussion.
General programming methods and concepts: Data structures, Object-oriented programming, Design Patterns, Generic programming, Parallelization,
More-specific tasks: String tokenization, Stream Input Output, Generating C Interfaces, Modernizing Old Fortran.
Interoperability with other languages: C, Python, and Tcl.