Nonelementary problem

A nonelementary problem refers to a type of problem in computational complexity that cannot be solved using elementary functions or approaches. In the context of computational complexity theory, elementary functions are typically those that can be generated from basic operations (addition, multiplication, exponentiation) in a limited number of steps. Nonelementary problems often involve more complex operations, such as those that require non-elementary growth rates, which may be related to functions that exceed polynomial or exponential bounds.