[SciPy-Dev] Updating constants

Vincent Davis vincent at vincentdavis.net
Fri Jun 11 01:09:22 EDT 2010


On Thu, Jun 10, 2010 at 10:54 PM, Vincent Davis
<vincent at vincentdavis.net> wrote:
> On Thu, Jun 10, 2010 at 10:38 PM,  <josef.pktd at gmail.com> wrote:
>> On Fri, Jun 11, 2010 at 12:11 AM, Vincent Davis
>> <vincent at vincentdavis.net> wrote:
>>> The current constants in scipy are from 2002, the newest set available
>>> are from 2006.
>>> Should they be updated, What are the issues with updating with regard
>>> to notifying users ie documenting the update.
>>
>> I thought these are constants. Did they change the value of Pi recently?
>
> They found more digits of Pi :)
> I was referring to "Fundamental Physical Constants" scipy.constants.codata
> I don't know, it's not easy to compare. I assume there was a reason
> they updated the list. There is an Uncertainty value on many of them
> so I assume the actual value don't change but our estimate does.
>
> http://physics.nist.gov/cuu/Constants/index.html
> release dates 1986, 1998, 2002, 2006
>
> Vincent
>
>>
>> just curious: What has changed?
>>

I just relived I can update the constants and then compare them with
the old. Should be quick, I will send out the diff in the morning.

Vincent


>> Josef
>>
>>>
>>> Vincent
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