Anonymous user
Talk:Factors of an integer: Difference between revisions
→fix bug in k ( kx.com's dialect of APL ): new section
(→fix bug in k ( kx.com's dialect of APL ): new section) |
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==Python relative performance==
Hi Ledrug, care to join us over on [[Talk:Proper_divisors#Python:_comparisons]]... --[[User:Paddy3118|Paddy3118]] ([[User talk:Paddy3118|talk]]) 08:45, 20 December 2014 (UTC)
== fix bug in k ( kx.com's dialect of APL ) ==
The code <lang K> f:{d:&~x!'!1+_sqrt x;?d,_ x%|d}</lang>
was not working with current KDB version .. "~x!'" gives a type error
"q" is a literate wrapper for "k" so I provided that to make it clearer what the code is doing
<lang K>q) f:{i:{y where x=y*x div y}[x ; 1+ til floor sqrt x]; distinct i,x div reverse i}</lang>
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