Feature #4831
closed
Added by mame (Yusuke Endoh) almost 13 years ago.
Updated about 1 month ago.
Description
Hello,
lib/prime provides Integer#prime_division, but I always forget the name.
I think that #prime_factors is more suitable. I'd like to hear opinions
of English natives. What do you think?
--
Yusuke Endoh mame@tsg.ne.jp
Yes, #prime_factors and #factors are synonyms.
- Status changed from Open to Assigned
- Target version changed from 2.0.0 to 2.6
- Target version deleted (
2.6)
I am not against adding such an alias but I'd like to think with more inputs. At this moment, I don't have strong reason to justify the name.
From a certain perspective, the alias is simply wrong because the method returns not only prime factors of the receiver but also their multiplicities -- i.e. the prime division of the receiver.
For me, 200.prime_factors
sometimes looks to return (or yield) [2, 2, 2, 5, 5]
as MATLAB does.
Mame, do you have any concrete examples which support your expectation to the return value? Or any suggestions from native English speakers or mathematicians?
- Status changed from Assigned to Closed
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