|
PrimePi
 PrimePi[x] gives the number of primes  less than or equal to x.
The argument of PrimePi can be any positive real number.
PrimePi[1] gives 0.
See The Mathematica Book: Section 3.2.4.
Implementation Notes: see section A.9.4.
See also: Prime, Zeta.
Further Examples
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT. SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION. | 
