→ kanjames:他叫你求particle的路徑122.116.241.185 02/02 04:06
Suppose that the temperature at each point of a metal plate is given
by the function T(x,y)=1+x^2-y^2 . Find the path followed by a heat-seeking
particle that originates at (-2,1)
我比較想問的是為什麼要求▽T(x,y)
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