Title: Re: [USMA:35893] Value of Pi
Dear Linda,
Thanks for your thoughts (below) about the value of 'pi'.
You might be interested in a device that I made for my garden to provide evenly cleared circles under our lime tree and our lemon tree in the garden.
I had an old piece of hose and I cut this, as near as I could to an exact length of 3142 millimetres. I then joined the ends with a short hose connector and so, whenever I like, I can place this around a tree to give me a guide to clear a 1 metre diameter circle. As you say, 'the millimetre provides sufficient precision for the need'.
Cheers,
Pat Naughtin LCAMS (USMA), Member NSAA*
PO Box 305, Belmont, 3216
Geelong, Australia
Phone 61 3 5241 2008
Pat Naughtin is the editor of the free online monthly newsletter, 'Metrication matters'.
You can subscribe by going to http://www.metricationmatters.com/newsletter
* Pat is the editor of the 'Numbers and measurement' chapter of the Australian Government Publishing Service 'Style manual – for writers, editors and printers', he is a Lifetime Certified Advanced Metrication Specialist (LCAMS) with the United States Metric Association, a member of the National Speakers Association of Australia and the International Federation for Professional Speakers. For more information go to: http://metricationmatters.com
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On 28/01/06 1:11 PM, "Linda D. Bergeron" <[EMAIL PROTECTED]> wrote:
> The recent discussion about the value of Pi has been interesting and in some
> cases heated. However, unless one is ready to throw away the Axioms of
> Arithmetic, which unpins all mathematics, three things must be accepted:
>
> 1. Pi is transitional.
> 2. Pi is irrational.
> 3. Pi is the ratio of the circumference of a circle and to it's diameter.
>
> These three irrefutable facts preclude any attempts to 'mandate', 'delcare'
> or 'legislate' it's value.
>
> People are free to use what ever approximation for it's true value that they
> want provided condition three (above) is not violated within the available
> means of measuring. For everyday purposes, the millimeter provides
> sufficient precision for the need and satisfies this condition.
>
> Linda D. Bergeron
>
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