ρ=4m/πd2h (2为平方)N=(x/2)-(y3/2) 3为立方L=h+d/3z=(x-y)/(x+y)

问题描述:

ρ=4m/πd2h (2为平方)
N=(x/2)-(y3/2) 3为立方
L=h+d/3
z=(x-y)/(x+y)

取全微分:N=F(x,y,z…) 
这就是间接测量不确定度的传播公式.