A surface represented by the formula: A plane including the z-axis cuts this surface into a hyperbola, and a plane parallel to the x-axis and y-axis cuts this surface into a circle. Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information |
〘名〙 で表わされる曲面。z軸を含む平面とこの曲面との切り口は双曲線になり、x軸、y軸に平行な平面との切り口は円になる。単葉双曲面。
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