a2(x−h)2+b2(y−k)2=1start fraction, left parenthesis, x, minus, h, right parenthesis, squared, divided by, a, squared, end fraction, plus, start fraction, left parenthesis, y, minus, k, right parenthesis, squared, divided by, b, squared, end fraction, equals, 1
这是以椭圆中心位于 (h,k)left parenthesis, h, comma, k, right parenthesis的标准方程，其水平半径为 aa 并且垂直半径为 bb。
