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You are not logged in. #1 20060120 00:24:31
Calculating Irregular AreasHi, #3 20060120 01:21:19
Re: Calculating Irregular AreasYou have to decompose the figure. For example, if it's a triangle on top of a square, first find the area of the square, then the area of the triangle, and add them together. "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #4 20060120 09:05:22
Re: Calculating Irregular AreasI did this once. "The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman #5 20070305 12:05:01
Re: Calculating Irregular AreasI have written this up here: Area of Irregular Polygons "The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman #6 20070305 19:47:28
Re: Calculating Irregular AreasSuppose you have n points on your polygon. And they are A_{1},A_{2},...A_{n} counterclockwise sequenced, also you know their positions in Cartesian coords. Last edited by George,Y (20070305 19:51:42) X'(yXβ)=0 #8 20070305 21:25:16
Re: Calculating Irregular AreasI think that is right, George. "The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman #9 20070305 22:51:14
Re: Calculating Irregular AreasActually my solution is a formula already, which I came cross on some site. Using determinants to get the area of a polygon. X'(yXβ)=0 