标准方程
standard equation The equation of an ellipse with center at the origin and foci on a coordinate axis. E.g., for foci on the x-axis: $\frac{x^2}{a^2} + \frac{y^2
CSCA 数学 考试术语
standard equation The equation of an ellipse with center at the origin and foci on a coordinate axis. E.g., for foci on the x-axis: $\frac{x^2}{a^2} + \frac{y^2
CSCA 数学 考试术语