Difference between revisions of "Chebyshev psi function"
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Latest revision as of 03:47, 22 June 2016
The Chebyshev $\psi$ function is $$\psi(x) = \displaystyle\sum_{p^k \leq x} \log p = \displaystyle\sum_{n \leq x} \Lambda(n),$$ where $\Lambda$ denotes the Mangoldt function.
Plot of $\psi$ on $[0,100]$.
Plot of $\psi$ on $[0,1000]$.
