解析几何是用代数方法研究几何问题,是高中数学重要的组成部分,也是高考考查的重要内容,特别地,圆锥曲线这块内容既是重点又是难点.但由于圆锥曲线计算上比较麻烦,许多学生在做题时望而却步,其实我们换个角度,圆锥曲线的图形非常优美,椭圆和双曲线既是轴对称图形又是中心对称图形,曲线光滑又张弛有度,而且椭圆与圆的图形比较相似、三种圆 Analytical geometry is the algebraic method of geometric problems, is an important part of high school mathematics, but also an important part of the college entrance examination examinations, in particular, the conic is not only an important but difficult, but due to the conic calculation is too much trouble, many students In fact, the prohibitive discourse, in fact, we point from another point of view, the conic curve is very beautiful, elliptical and hyperbola both axisymmetric and centroid symmetrical graphics, the curve is smooth and a degree of relaxation, and oval and circular graphics are similar, three round