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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Mertens-function/J/mertens-function.j Normal file
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@ -0,0 +1,12 @@
mu =: 0:`(1 - 2 * 2|#@{.)@.(1: = */@{:)@(2&p:)"0
M =: +/@([: mu 1:+i.)
m1000 =: (M"0) 1+i.1000
zero =: +/ m1000 = 0
cross =: +/ (-.*.1:|]) m1000 ~: 0
echo 'The first 99 Merten numbers are'
echo 10 10$ __, 99{.m1000
echo 'M(N) is zero ',(":zero),' times.'
echo 'M(N) crosses zero ',(":cross),' times.'
exit''