Remember, partial f, partial x was obtained by y That means I am slicing the graph of f by a plane that is parallel to the x, z plane.
要记得,在这里的fx中,是作为常量保持不变的。,looking,at,the,situation,where,y,is,held,constant。,这是我用一个平行于xz坐标系的平面,横截了f,所得到的图形。
Remember, partial f, partial x was obtained by y That means I am slicing the graph of f by a plane that is parallel to the x, z plane.
要记得,在这里的fx中,是作为常量保持不变的。,looking,at,the,situation,where,y,is,held,constant。,这是我用一个平行于xz坐标系的平面,横截了f,所得到的图形。
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