发布网友 发布时间:2024-10-24 02:54
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热心网友 时间:2024-11-02 21:23
设 W = sin(y*x^2) - 3^y - xy
带公式:
dy/dx = - (δW/δx) / (δW/δy)
δW/δx = (2yx)*cos(y*x^2) - y
δW/δy = (x^2)*cos(y*x^2) - (3^y)*ln(3) - x
dy/dx =