用matlab求解C D E F G H答:matlab中没ln函数 用log代替 还有每个等式作为一个参数传递 看看帮助吧 [a,b,c,d,e,f,g,h]=solve('19.288+8.314*log(a)+f+4*g=0','8.314*log(b)+2*g=0','191.138+8.314*log(c)+3*f+8*g=0','118.198+8.314*log(d)+2*f+4*g=0','181.69+8.314*log(e)+3*...
matlab的问题 已知一组数据 我想将曲线拟合成y=alnx+b 怎么编写matlab语...答:y=alnx+b这个模型x至少要大于0把,我把你的第一个数据删了 x=[70,130,210,337,578,776,1012,1142,1462,1841];y=[57,78,103,135,182,214,244,256,272,275];plot(x,y,'o')hold on f=@(A,x)A(1)*log(x)+A(2);A=nlinfit(x,y,f,[1,1])%%%方程系数矩阵 xx=min(x):0...