x=[3.9 5.3 7.2 9.6 12.9 17.1 23.2 31.4 38.6 50.2 62.9 76.0 92.0 106.5...
123.2 131.7 150.7 179.3 204.0 226.5 251.4 281.4];
b=diff(x)
a=b/x
A=polyfit(x,a,1)
s=-1*A(:,1)
r=A(:,2)
xm=r/s
总是报错
??? Error using ==> mldivide
Matrix dimensions must agree.
Error in ==> bwt0002 at 4
a=b/x
可以的话,小弟在线等,感激不尽