08年高等教育学费标准问题,有疑问？？

lnyy

4）模型二的程序：
: p% Z, r# L9 p
4 }. a# @/ N( A' d# @) a: Smodel:
5 g, W+ m7 J7 z4 O! M$ Fdata:
% X' p" z& s" Y; k( y( o0 L6 w6 C* MF1=125957124000;
F2=1933151000;
# R0 h& }* J5 l2 _" @* j4 I- hF3=56972147000;
- g; y* b$ @4 X  Z! U8 G0 H3 u/ K8 jF4=92109757000;
F5=82509664000;
( b2 e/ o4 L: \" P) ~* Q$ ?F6=36744586000;
F7=37113047000;
N=19158000;
!N=17388000;
E=0.398;
) s+ b& k* i# Q1 \+ f& J% _p1=7174.7;
p2=33444;
p2g=21001;
p4=18268;
. X) w( ?: U2 rC1=0.25;
- V0 o( k" B: s$ O+ |- PC2=0.2;
% N- c# n- {1 s! ?# p2 k: zC3=0.2;
" }4 X' t8 B+ {+ A, f3 bC4=0.15;
enddata
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! ?0 t" X7 j: H. K" T) vmax=0.25*x1/sf1*(F4+F6+N*x2)/FP
+0.25*(1-E)*p1/(x1-x2)
+0.25*(sf1+sf2+sf3+x1)/(F4+F5+F6+F7)*N+x2
, P9 V% L$ N+ M( S+ }8 J- d+0.25*(p2-p2g)/(x1-x2);

x1<C1*sf;   %此次的sf从哪里i来的。不是f吗，但是我换为f，程序就出现错误(可见附件
$ T* I, B" z5 r8 G9 L9 bx1<C2*p3;
x1-x2<C3*p4;
& H( {$ @7 V6 t( x2 N! h4 yN*x2+F4+F5+F6+F7<N*x1+F1+F2+F3;
x2<C4*x1;

f=(F4+F5+F6+F7)/N+x2;
FP=(F4+F5+F6+F7)+N*x2;
p3=3.17*7174.7;
sf1=F1/N;
0 G2 w) j2 s- e2 @. H" q3 Vsf2=F2/N;
sf3=F2/N;
end