How do you do this with no "pi" factor. Yeah, pi are round and shortbread are square, heh, heh.
DJE ----- Original Message ----- From: Darrell To: [email protected] Sent: Saturday, July 07, 2012 12:54 PM Subject: {S-Scale List} Re: Basic Geometry If you have a computer (I assume you do or you wouldn't be HERE) you have a calculator of sufficient capacity. You merely need to know the formula. where c is the length of the chord and a is the length of the arc, radius = (a² + 1/4c²)/2a Plug in your values, do the math, and there you are..... so..... square a and add to memory. square c and multiply x .25 and add to memory. recall memory and divide by two, then divide by a. you are done. Darrell --- In [email protected], "David Engle" <rirocket@...> wrote: > > Can someone please recommend a cheap calculator or app that will do the radius of a curve when the arc and chord lengths are measured. DJE >
