Mathematica常用操作

求导和积分

F = x^3 + y^3 + 3 x y;
ans1 = D[F, x]
ans2 = D[F, {x, 2}]
ans3 = D[F, x, y]
ans4 = D[F, {x, 2}, {y, 2}]
ans5 = Integrate[F, {x, 0, 1}, {y, 0, 1}]