如何证明过椭圆焦点作两互相垂直的直线,交椭圆于4个点,用最小二乘法拟合这四个点,则拟合直线过定点 知乎 Template




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tomski如何证明过椭圆焦点作两互相垂直的直线,交椭圆于4个点,用最小二乘法拟合这四个点,则拟合直线过定点 知乎 coloring