Drexel dragonThe Math ForumDonate to the Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.math

Topic: redefining pi
Replies: 7   Last Post: May 9, 2013 12:54 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]

Posts: 1,388
Registered: 4/7/12
Re: redefining pi
Posted: May 7, 2013 12:29 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On 7 Maj, 06:24, JT <jonas.thornv...@gmail.com> wrote:
> On 7 Maj, 03:08, david petry <david_lawrence_pe...@yahoo.com> wrote:

> > On Monday, May 6, 2013 3:01:53 AM UTC-7, Timothy Murphy wrote:
> > > What does the teacher say to the school pupil who asks,
> > > "What do you mean by the circumference of a circle?"

> > It can be explained intuitively in terms of wrapping a string around a cylinder.
> Circumreference can be explained *exactly* by adding together all
> sidelengths of a uniform polygon where vertices approach a limit.
> It is easiest to start with a polygon because it is built by isoceles.
> Basicly you just go for an adequate smoothness and end up with giving
> the sidelengths as a fraction relation to the vertice of the hexagon.
> So 1/x * distance between center of polygon and vertex.

Multiplied by number of sides/vertices of course.

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2015. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.