P牌洋芋片 雙曲拋物面

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  1. 雙曲拋物面方程式為z=(x-x_0)^2/a^2 - (y-y_0)^2/b^2 + z_0。a,b可調整雙曲面之形狀。另外感謝藍邦偉老師在MTS聊天中的簡短分享。靈感來源：陳志偉(2022). 〈從洋芋片到教堂屋頂的巧妙應用 自然界找不到的特殊形狀 雙曲拋物面〉, 《科學月刊》627期。https://www.scimonth.com.tw/archives/5620 (.ggb)