>>676
I(wij​)Iˉ(t)(wij​)Uˉ(t)(wij​)s(t)(wij​)​====​
​wij​∇wij​​L
​β1​Iˉ(t−1)(wij​)+(1−β1​)I(t)(wij​)β2​Uˉ(t−1)(wij​)+(1−β2​)
​I(t)(wij​)−Iˉ(t)(wij​)
​Iˉ(t)(wij​)⋅Uˉ(t)(wij​)​