08年高等教育学费标准问题,有疑问？？

lnyy

4）模型二的程序：
: X& m0 J  J' @1 S; n$ j  o& c; a
  N0 Z. w  E, b$ E+ Dmodel:
data:
F1=125957124000;
/ L) C3 N! M: @' PF2=1933151000;
) ?; E) P! v' y* M$ QF3=56972147000;
F4=92109757000;
7 S# \# w! P% u2 T5 c- I$ aF5=82509664000;
F6=36744586000;
! k, [( h! o: H) F, H" [F7=37113047000;
N=19158000;
2 k( y4 X+ E7 E' `/ \0 C: U!N=17388000;
, w+ \- `7 O! I3 E2 X; Z5 DE=0.398;
; \4 F, R$ h" `& X5 Z% Y* Ip1=7174.7;
p2=33444;
p2g=21001;
p4=18268;
C1=0.25;
8 l. ~3 w$ `7 ^0 W0 aC2=0.2;
C3=0.2;
C4=0.15;
# H. h0 @; y8 Wenddata
# E% C! t- R$ F% L) v2 @* D1 v0 ~
max=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
+0.25*(p2-p2g)/(x1-x2);
! q$ `- X( |1 ?
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
x1<C2*p3;
x1-x2<C3*p4;
N*x2+F4+F5+F6+F7<N*x1+F1+F2+F3;
x2<C4*x1;
4 k- }' f" ?  w6 d3 }/ _
! q- }0 S# P7 V4 n, r, w  @f=(F4+F5+F6+F7)/N+x2;
FP=(F4+F5+F6+F7)+N*x2;
p3=3.17*7174.7;
  `: k' f  c6 f. ?; m& Dsf1=F1/N;
sf2=F2/N;
sf3=F2/N;
end