11.11 导言:二次曲线

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  导言:二次曲线

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  Earth was once thought to be the center of our universe. The study of astronomy and the positions of cosmic bodies, satellites, and rays have been important in understanding our own world. The orbits and trajectories in the universe can be modeled by curves called conic sections. Conics are an application of analytic geometry. In this chapter, we will explore the attributes and equations of conics.
  ::地球曾经被认为是我们宇宙的中心。天文学研究以及宇宙体、卫星和射线的位置对于了解我们的世界非常重要。宇宙中的轨道和轨迹可以通过曲线来建模,称为二次曲线。二次曲线是分析几何的一种应用。在本章中,我们将探索二次曲线的属性和方程。