中文翻译:The types of surfaces defined by values of k are as followsThe conic constant for an ellipse 1 k 0 is related to the major and minor axes of the ellipse The following figure shows an ellipse d
由k值定义的表面类型如下: 椭圆(-1 < k < 0)的圆锥常数与椭圆的长轴和短轴有关。下图显示了由长轴和短轴定义的椭圆。 k = 0 球体 -1 < k < 0 长轴在z轴上的椭圆 k = -1 抛物面 k < -1 双曲面 k > 0 扁平球体(不是真正的圆锥截面)
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