I meant chord, of course... On Apr 17, 2015, at 9:08 AM, Cris Moore <moore@santafe.edu> wrote:
Yes! Think about the ratio between the length of an arc and the straight cord that connects its ends.
Very nice! - Cris
On Apr 17, 2015, at 6:45 AM, James Propp <jamespropp@gmail.com> wrote:
Is there a Greek-style geometric proof that interprets the nth partial product (after some minor adjustments perhaps) as the perimeter of a regular 2^n-gon inscribed in the unit circle?
Jim Propp
On Thursday, April 16, 2015, David Wilson <davidwwilson@comcast.net> wrote:
x*cos(x/2)*cos(x/4)*cos(x/8)*. = sin(x).
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