題組內容
5. (25%) The distribution of voltage on a metal plate is given by
V(x,y) = 50-x²-4y².
(b) (5%) In what direction does the voltage decrease most
rapidly ?
5. (25%) The distribution of voltage on a metal plate is given by
V(x,y) = 50-x²-4y².
(b) (5%) In what direction does the voltage decrease most
rapidly ?