👉 In mathematics, a backstrapped function is a specific kind of polynomial that has a special form. Backstrapping is often used in the context of computer science and signal processing to describe a type of filter or network architecture. A backstrapped function (or simply "backstrapper") is a sequence of polynomials that are all zeros except for the first and last terms, which have non-zero coefficients. The term backstrapped can also refer to the concept of a backstrapping filter