We prove that the error term differs from (ψ(x)-x)/x by a well controlled function. We deduce very precise numerical results from the formula obtained.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-aa159-2-2,
author = {Olivier Ramar\'e},
title = {Explicit estimates for the summatory function of $\Lambda$(n)/n from the one of $\Lambda$(n)},
journal = {Acta Arithmetica},
volume = {161},
year = {2013},
pages = {113-122},
zbl = {06164549},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa159-2-2}
}
Olivier Ramaré. Explicit estimates for the summatory function of Λ(n)/n from the one of Λ(n). Acta Arithmetica, Tome 161 (2013) pp. 113-122. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa159-2-2/