In the process of calculating the limit of a contractive sequence, it is often very important to have an estimate of the error at the nth stage. In the next result we give two such estimates: the first one involves the first two terms in the sequence and n; the second one involves the difference Xn - Xn-1·


여기서 error 때문인지 two such estimates 이하부분까지 같이 해석이 안돼