[問題] 求拋物面
今天有一個拋物面方程式Z=Z(X,Y) (3D曲面)
今天若假設此拋物面與平面:X=constant 相交的拋物線為Z=aY^2+bY+c
(a b c的值要看X取的constant為多少)
且此拋物面與平面:Y=constant 相交的拋物線為Z=a'X^2+b'X+c'
(a'b'c'的值也是要看Y取的constant是多少)
請問要怎麼假設Z(X,Y)會比較完善??
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