[R] Value of 'pi'

Ravi Varadhan rvaradhan at jhmi.edu
Mon May 30 16:22:10 CEST 2011


Here is the wiki entry on the "Indiana Pi Bill"

http://en.wikipedia.org/wiki/Indiana_Pi_Bill

Ravi.
________________________________________
From: r-help-bounces at r-project.org [r-help-bounces at r-project.org] On Behalf Of Bill.Venables at csiro.au [Bill.Venables at csiro.au]
Sent: Monday, May 30, 2011 2:53 AM
To: jwiley.psych at gmail.com; vincy_pyne at yahoo.ca
Cc: r-help at r-project.org
Subject: Re: [R] Value of 'pi'

There is an urban legend that says Indiana passed a law implying pi = 3.

(Because it says so in the bible...)



-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Joshua Wiley
Sent: Monday, 30 May 2011 4:10 PM
To: Vincy Pyne
Cc: r-help at r-project.org
Subject: Re: [R] Value of 'pi'

Dear Vincy,

I hope that in school you also learned that 22/7 is an approximation.
Please consult your local mathematician for a proof that pi != 22/7.
A quick search will provide you with volumes of information on what pi
is, how it may be calculated, and calculations out to thousands of
digits.

Cheers,

Josh

On Sun, May 29, 2011 at 11:01 PM, Vincy Pyne <vincy_pyne at yahoo.ca> wrote:
> Dear R helpers,
>
> I have one basic doubt about the value of pi. In school, we have learned that
>
> pi = 22/7 (which is = 3.142857). However, if I type pi in R, I get pi = 3.141593. So which value of pi should be considered?
>
> Regards
>
> Vincy
>
>
>
>
>
>        [[alternative HTML version deleted]]
>
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>



--
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
http://www.joshuawiley.com/

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and provide commented, minimal, self-contained, reproducible code.


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