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joeyoung83 · 2008-08-14, 13:53

syms x1 y1 z1 x2 y2 z2 x3 y3 z3 d1 d2 d3
[x,y,z]=solve('d1*d1=(x-x1)*(x-x1)+(y-y1)*(y-y1)+(z-z1)*(z-z1)','d2*d2=(x-x2)*(x-x2)+(y-y2)*(y-y2)+(z-z2)*(z-z2)','d3*d3=(x-x3)*(x-x3)+(y-y3)*(y-y3)+(z-z3)*(z-z3)')

2008-08-14, 13:53	#2
joeyoung83 初级会员注册日期: 2008-08-13 年龄: 41 帖子: 5 声望力: 0	回复: 求三圆交点问题 syms x1 y1 z1 x2 y2 z2 x3 y3 z3 d1 d2 d3 [x,y,z]=solve('d1d1=(x-x1)(x-x1)+(y-y1)(y-y1)+(z-z1)(z-z1)','d2d2=(x-x2)(x-x2)+(y-y2)(y-y2)+(z-z2)(z-z2)','d3d3=(x-x3)(x-x3)+(y-y3)(y-y3)+(z-z3)(z-z3)')