15 has actually 4 divisors: 1, 3, 5 and 15. What's wrong there? Le lundi 15 mars 2010 à 11:27 -0500, avkalb a écrit : > Using Gnumeric Spreadsheet 1.10.1 and 64-bit Sidux. > > The Gnumeric Manual, Version 1.10, section A13 indicates some number theory > calculations are available. I have briefly examined a few: > > Some functions give me reasonable outputs for simple test inputs: > Isprime, ithprime, nt_pi, nt_sigma, and pfactor. > > But nt_d doesn't seem to work as I expected. nt_d(n) is supposed to > calculate the number of divisors of n > according to function reference A13 in The Gnumeric Manual, Version 1.10 > > If you select the insert function from the menu bar and then select nt_d > from the listing, an example is given > that nt_d(4096) = 13. In actuality, 2^12 = 4096 i.e there are 12 > divisors of 2 in 4096. If 1 also is included > as a divisor then 13 would be correct. > > But that doesn't explain the following results: > > nt_d(15) = 4 > nt_d(21) = 4 > nt_d(70) = 8 > > though it would explain these: > n 7 11 31 16 > nt_d(n) 2 2 2 5 > > What's wrong? Am I misinterpreting what the function is supposed to > do? Any suggestions? > > > _______________________________________________ > gnumeric-list mailing list > [email protected] > http://mail.gnome.org/mailman/listinfo/gnumeric-list >
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