 Approximation theorists

Approximation theorists are mathematicians or researchers who specialize in the field of approximation theory. This area of mathematics deals with how functions can be approximated using simpler or more manageable forms, such as polynomials, trigonometric functions, or other basis functions. The primary focus is on understanding the ways in which functions can be estimated or represented using finite-dimensional subspaces, as well as quantifying the error involved in such approximations.