Thus x/(log(x)-a) is also asymptotic to (x) for any a. See [CP01,1.1.5] for a discussion of why a=1 is the best choice. Table 1.2 compares (x) The record for counting prime is
Thus x/(log(x)-a) is also asymptotic to (x) for any a. See [CP01,1.1.5] for a discussion of why a=1 is the best choice. Table 1.2 compares (x) The record for counting prime is