Anonymous function: Function (mathematics), Subroutine, Name binding, Identifier, Alonzo Church, Lambda calculus, recursion, Alan Turing

Fixed point Combinator: combinator, Higher order function, (mathematics), lambda calculus, Haskell Curry,...

Inverse Function Theorem: Mathematics, Differential Calculus, (mathematics)

Convex function: function, Mathematics, Function (mathematics), Subset, Interval (mathematics)

Algebraic Function: Function, Mathematics, Function (mathematics), Polynomial