[Coco] PI day

[Arthur Flexser]

This math type is clearly deluded in a severe way.  There's a zillion
contexts where pi appears without need of doubling, in math, physics,
engineering, etc.  The area of a circle being only the most obvious.

The idea of adding an extra stroke to the symbol for a well-known
constant to indicate a convenient modified version does have precedent
in physics, though, and even involves pi:  the "reduced" Planck
constant, equal to Planck's constant divided by 2 pi.  Planck's
constant (the ratio of a photon's energy to its frequency) is denoted
by h, and the reduced version by "h-bar", an h with a little crossbar
drawn across the upper stem.

Happy Pi Day!

Art

On Wed, Mar 14, 2012 at 10:12 AM, gene heskett <gheskett at wdtv.com> wrote:
> On Wednesday, March 14, 2012 10:06:17 AM Frank Pittel did opine:
>
>> I'd like to wish a happy PI day to all!!
>>
>> The Other Frank
>
> Chuckle.  I was just reading a plea from a math type that we need a new
> symbol because pi is wrong, everyplace it is used except for circumference,
> it has to be used as 2pi, so there is a move afoot to define a new 'tau' as
> being equal to 2pi, suggesting its symbol to be a 3 legged pi symbol.  Sure
> gets rid of all those 2pi's in the math.  I doubt it will catch on though.
>
> Cheers, Gene
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> My web page: <http://coyoteden.dyndns-free.com:85/gene>
> Work consists of whatever a body is obliged to do.
> Play consists of whatever a body is not obliged to do.
>                -- Mark Twain
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco