给定任意三点A（x1,y1）B（x2,y2）C（x3,y3）求外接圆半径的matlab程序

Question

如题所述

Answer 1

x1=0;
y1=0;
x2=1;
y2=2;
x3=2;
y3=1;
a=sqrt((x1-x2)^2+(y1-y2)^2);
b=sqrt((x2-x3)^2+(y2-y3)^2);
c=sqrt((x3-x1)^2+(y3-y1)^2);
r=a*b*c/sqrt((a+b+c)*(a+b-c)*(a-b+c)*(-a+b+c))本回答被网友采纳