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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Legendre-prime-counting-function/Mathematica/legendre-prime-counting-function.math Normal file
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ClearAll[Phi,pi]
$RecursionLimit = 10^6;
Phi[x_, 0] := x
Phi[x_, a_] := Phi[x, a] = Phi[x, a - 1] - Phi[Floor[x/Prime[a]], a - 1]
pi[n_] := Module[{a}, If[n < 2, 0, a = pi[Floor[Sqrt[n]]]; Phi[n, a] + a - 1]]
Scan[Print[pi[10^#]] &, Range[0,9]]