救命

422258511

syms t
x=2000/3*[3 10 20 30 40]';
+ t5 l8 i, w5 R6 u; K  }6 S9 Uy=[780.8 696.8 669.6 639.2 585.6]';
, w, I* D9 X7 Af=fittype('a*exp(b*t)','independent','t','coefficients',{'a','b'});
+ L/ x% S& H; p) w$ q' n+ H; e: bcfun=fit(x,y,f);
xi=0:.1:20;
yi=cfun(xi);
plot(x,y,'r*',xi,yi,'-b');
, }4 _/ L0 k  v9 _
$ F/ N, _8 M$ A# g8 v. C怎么运行不了？急用，帮帮忙

422258511

呵呵，发货的司法看得见啊