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Re:况且是不是精度问题还不知道z

Posted by frkstyc at 2006-06-20 15:37:38 on Problem 2098
In Reply To:Re:况且是不是精度问题还不知道z Posted by:041221125 at 2006-06-20 15:30:38
> 确实是
> 可是在算法不懂的时候
> 用高精度如果可以过说明方法对的
> 可是过不了就什么也说明不了
> 
> 有一点不是很清楚
> 
> 对
> a*x^2 + b*y^2 + c*x*y + d*x + e*y + f = 0
> 按五点坐标代进去解方程组
> 是否方程组有唯一解 <=> 椭圆面积存在?
五个方程六个未知数显然一般不会唯一解

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