nn.m

这是用牛顿法做的

year=[0.125 0.250 0.375 0.500 0.625 0.750]';
price=[0.79618 0.77334 0.74371 0.70413 0.65632 0.60228]';
y=linspace(min(year),max(year),10);
[yhat,dy,c]=newtint(year,price,0.37)