OFFSET
1,2
COMMENTS
A tribute to 5-place logarithm tables which served many generations of students and technical people. - Michael Somos, Sep 21 2002
a(10*n) = a(n) + 100000, virtually. - Reinhard Zumkeller, Nov 12 2011
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Common Logarithm
Wikipedia, Common logarithm
Wikipedia, Tables of logarithms
MAPLE
lprint(round(evalf(100000*log(n)/log(10))));
PROG
(PARI) a(n)=if(n<1, 0, round(10^5*log(n)/log(10)))
(Haskell)
a027665 n = round $ 100000 * log (fromInteger n) / (log 10)
-- Reinhard Zumkeller, Nov 12 2011
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved