Part 1 of this article introduced four new T-SQL functions available in SQL Server 2012. Part 2 has the rest.

We refine the notion of fusion of functions, and show that constructions which employ fusion of functions have properties which clearly distinguish them from superficially similar constructions which ...

Arthur Schwartz, Derivative Functions in Syntax, Language, Vol. 44, No. 4 (Dec., 1968), pp. 747-783 ...