F Sharp (programming language)
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F# (pronounced F sharp) is a mixed functional and imperative programming language for the Microsoft .NET initiative. F# was developed by Don Syme at Microsoft Research, and it is based on O'Caml (itself a member of the ML programming language family).
F# is a minor project to demonstrate how .NET enables interoperability between different programming paradigms. Specifically F# showcases a set of extensions to .NET's intermediate language IL, called ILX which demonstrate how a strict curried functional language may be compiled efficiently.