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Ramanujan primes: Difference between revisions

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Ramanujan primes (view source)

Revision as of 20:23, 3 September 2021

65 bytes added ,  2 years ago
m
use primes instead of primesmask
m (use primes instead of primesmask)
Line 98:
 
=={{header|Julia}}==
<lang julia>using Primes, Memoize
 
const MASK = [[false]]
 
const PRIMES = [primes(625000)]
@memoize function PI(n)▼
 
if n > length(first(MASK))
▲@memoize function PI(n)
empty!(MASK)▼
if n > push!first(MASK, primesmask(2n)PRIMES)[end]
▲ empty!(MASKPRIMES)
push!(PRIMES, primes(2n))
end
return sumn < 100000 ? findfirst(@viewx -> x > n, first(MASKPRIMES)[) - 1 :n])
findlast(x -> x <= n, first(PRIMES))
end
 
 
function Ramanujan_prime(n)
Wherrera
4,102

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