救命

422258511

syms t
x=2000/3*[3 10 20 30 40]';
  o' ~  \$ O/ Sy=[780.8 696.8 669.6 639.2 585.6]';
f=fittype('a*exp(b*t)','independent','t','coefficients',{'a','b'});
3 U8 J# Q. A2 C7 vcfun=fit(x,y,f);
! h! B3 f" _, R, J/ k  oxi=0:.1:20;
4 I5 g  L+ ?9 W2 Z2 R" ~# {( Cyi=cfun(xi);
plot(x,y,'r*',xi,yi,'-b');
4 k+ [- R, X! t& u% ~
3 c7 j, ^9 W/ q; M# c, |" h, v怎么运行不了？急用，帮帮忙
0 ~0 q- Z4 o5 k7 c

422258511

呵呵，发货的司法看得见啊