8楼: Originally posted by FXG11015103 at 2016-11-07 18:40:04
y=2*A*(exp(a*(x^2+2/x-3))-b*log(x^2+2/x-2))*(x^2-1/x)+(x^2-1/x)*Sample Text ，加粗的部分为积分项...

10楼: Originally posted by FXG11015103 at 2016-11-07 18:43:26
这是最终版
y=2*A*(exp(a*(x^2+2/x-3))-b*log(x^2+2/x-2))*(x^2-1/x)+(x^2-1/x)*(x,1)(4*a1*(exp(b1*(z^2+2/z-3))-c1*log(z^2+2/z-2))*(z^2-1/z)*exp(3*(x-z))dz
需要拟合的参数为a1,b1,c1...