Talk:Test integerness: Difference between revisions

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Revision as of 13:50, 21 June 2014

Some thoughts

We also have: Determine if a string is numeric
What does integerness mean? would "Have no imaginary part(s) and nothing* after the decimal point" do?

(At least for ints, reals, complex, and Quaternion types; not sure about infinities and whatnot).

*Note, .999... === 1 though.

--Paddy3118 (talk) 16:54, 18 June 2014 (UTC)

Thanks for clarifying the task. --Paddy3118 (talk) 12:11, 21 June 2014 (UTC)

An integer is an element of Z. Complex numbers, quaternions etc do no qualify as integers even if their real components are integers. There would be some sense in considering them so, but it's not the case mostly for historical reasons I guess.

To make the task clearer, I'll add a link to the Wikipedia article. Hope that helps.--Grondilu (talk) 13:50, 21 June 2014 (UTC)

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 :Thanks for clarifying the task. --[[User:Paddy3118|Paddy3118]] ([[User talk:Paddy3118|talk]]) 12:11, 21 June 2014 (UTC)
+::An integer is an element of '''[[wp:Integer|Z]]'''.  Complex numbers, quaternions etc do no qualify as integers even if their real components are integers.  There would be some sense in considering them so, but it's not the case mostly for historical reasons I guess.
+::To make the task clearer, I'll add a link to the Wikipedia article.  Hope that helps.--[[User:Grondilu|Grondilu]] ([[User talk:Grondilu|talk]]) 13:50, 21 June 2014 (UTC)