(x-a)^2+(y-b)^2=r^2 椭圆:x^2/a^2+y^2/b^2=1(x轴)(a>b>0) x^2/b^2+y^2/a^2=1(y轴)(...
发布时间:2025-01-25 所属栏目:百科知识 浏览量:946