急急急急!求高手,如何用matlab进行曲线拟合,就是已知x轴和y轴的...答:直线拟合 x = [.46 .59 .68 .72 .76 .81];y = [347.402286 349.455347 349.60027 349.6897 350.3570 351.204];p = polyfit(x,y,1);xx = min(x):.01:max(x);yy = polyval(p,xx);plot(x,y,'bo',xx,yy,'r-');legend('原始数据','拟合曲线',2);s = ['y ...