求大侠拟合二元函数.最好是MATALB拟合.z=a*x+b*x*y+c*exp(d*x)-(b/d)*y*exp(d*x)x=【29,65,43,39,62,40,43,52,53,61,30,42,39,43,57,47,17,16】y=【20,61,54,16,53,42,33,19,59,38,19,44,24,24,22,42,10,10】z= 【05,12,11,11,11,11,13,18,12,10,13,

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