This is a multi-part message in MIME format. ------=_NextPart_000_0090_01C4764F.BD023930 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Ok, I've googled my head off and I still can't find anything that makes sense to me... That may say more about me than about what I've found, but still. How does one compute the amount of area in the intersection of two circles? Given a pair of center points and radiues... Err.. Radii... Err... Radiums... Oh, I am so tired... Given a center point and radius for each circle, the area of each is A = Math.PI * r^2 The distance between center points is D = Math.Sqrt((Y1 - y2)^2 + (X1 - x2)^2) The maximum overlap is O = R1 + R2 - D And if O is positive then the area of the... Little eye shaped intersection... What ever you call that, is... Drum roll... What? The attached picture may help to explain what I am looking for. --- James Newton: PICList webmaster/Admin mailto:jamesnewton@piclist.com 1-619-652-0593 phone http://www.piclist.com/member/JMN-EFP-786 PIC/PICList FAQ: http://www.piclist.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! 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