[Haskell-cafe] Notes on migrating from uvector to vector

[Ozgur Akgun]

Wikipedia claims in short that "Year Zero is the year before 1 A.D. used in
astronomical calculations.".
In full: http://en.wikipedia.org/wiki/Year_zero

Seems like no calendar, other than astronomical things include it.


On 16 February 2010 04:32, Richard O'Keefe <ok at cs.otago.ac.nz> wrote:

>
> On Feb 16, 2010, at 4:53 PM, Ivan Miljenovic wrote:
>
>  On 16 February 2010 14:45, Don Stewart <dons at galois.com> wrote:
>>
>>> ivan.miljenovic:
>>>
>>>> On 16 February 2010 08:35, Don Stewart <dons at galois.com> wrote:
>>>>
>>>>> Enjoy the new decade of flexible, fusible, fast arrays for Haskell!
>>>>>
>>>>
>>>> /me points out that 2010 is actually the last year of the decade, and
>>>> not the first year of a new decade...
>>>>
>>>
>>> Computer scientists count from zero. :-)
>>>
>>
>> Except that the current numbering system to record the number of
>> revolutions that our planet has revolved around the nearest solar body
>> was not devised by computer scientists...
>>
>
> I'm not sure what kind of people are responsible for ISO 8601,
> but the ISO calendar, mandated by several programming language
> standards including ANSI Smalltalk, uses something called the
> "proleptic Gregorian calendar" (ISO 8601) or the "retrospective
> Gregorian calendar" (ANSI Smalltalk), which includes a year zero.
> Although 1AD was preceded by 1BC, 1CE is preceded by 0CE.
>
> Given that Europe got the concept of zero from the Muslims,
> I wonder whether the Muslim calendar(s) has(have) a year 0?
>
>
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-- 
Ozgur Akgun
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