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标题: mathematica一直运行没错误，大家帮忙看一下 [打印本页]

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作者: 上官    时间: 2020-3-24 15:32
标题: mathematica一直运行没错误，大家帮忙看一下
Clear[Am, As, Aa, \[Alpha], \[Rho], \[Theta]m, \[Theta]s, \
\[CurlyPhi]m, \[CurlyPhi]s, \[Epsilon]]
\[Gamma]a = 0.1; \[Gamma]m = 0.15; \[Gamma]s =
1 - \[Gamma]a - \[Gamma]m;
, q3 x: i# `$ Q, D. C2 L\[Epsilon] = 0.04; \[Alpha] = 0.3; \[Rho] = 0.04;
\[Theta]m = 0.75; \[Theta]s = 0.9;
gRate = 0.02;
% j7 n! S; A9 v1 v. A, v9 g9 o* ^Am = (gRate + \[Rho])/\[Alpha]; Ba = 4; Bm = 1; Bs = 2.5;
ps = Bm/Bs; pa = Bm/Ba;
\[Delta] = 0.03;
B = \!\(TraditionalForm\`\*
% Z9 ^  q) `) qFractionBox[
RowBox[{
RowBox[{
. J0 B. k  J  T" F0 g8 O( \' Q5 T7 VRowBox[{
StyleBox["(",
SpanMinSize->1.,
1 a' D( d4 ?! v& x) J. _0 fSpanMaxSize->1.],
: R' A, P0 X0 c9 f$ dRowBox[{"1", "\[Minus]", "\[Alpha]"}],
+ a) k% E% V" w6 R7 h. H1 f+ z& q7 wStyleBox[")",
" }8 j1 m! M' dSpanMinSize->1.,
SpanMaxSize->1.]}], "gRate"}], "+", "\[Rho]"}],
% u: l  u' H" T$ [* d      "\[Alpha]"] \[Minus] \[Delta]\);
0 a* N) k/ i2 Ncap = 10;
( ^) K5 l5 T2 k9 w( ^6 `+ pcsp = (pa*cap)/ps;
D = ((1 \[Minus] \[Alpha])*
! p! {* M( f& e, h    gRate + \[Rho] - \[Alpha]*\[Delta])/(\[Rho] + gRate);
7 B1 F1 n$ T. r- m8 u\[CurlyPhi]m = 0.1; \[CurlyPhi]s = 0.1;
7 }% @: j, t1 B7 I5 `! Q" NPrint["*** Initial Values ***"]
9 @& Y- ^2 a/ h9 t% X8 n) V9 ME0 = 1.5;
. ~; U( e( s# TK0 = E0/B;
$ W* c: C6 V5 j/ ihm0 = 0.25; hs0 = 0.25;(* initial values *)
\[Eta]m0 = hm0/K0; \[Eta]s0 = hs0/K0;
xm0 = (B*\[Gamma]m^\[Epsilon]*
   hm0^(\[Theta]m*(1 - \[Epsilon])))/(\[Gamma]a^\[Epsilon]*pa^(
    1 - \[Epsilon]) + \[Gamma]m^\[Epsilon]*
    hm0^(\[Theta]m*(1 - \[Epsilon])) + \[Gamma]s^\[Epsilon]*(ps*
      hs0^\[Theta]s)^(1 - \[Epsilon]));
xs0 = (B*\[Gamma]s^\[Epsilon]*(ps*
     hs0^\[Theta]s)^(1 - \[Epsilon]))/(\[Gamma]a^\[Epsilon]*pa^(
2 ]- H- U8 t: S6 Q. M    1 - \[Epsilon]) + \[Gamma]m^\[Epsilon]*
    hm0^(\[Theta]m*(1 - \[Epsilon])) + \[Gamma]s^\[Epsilon]*(ps*
      hs0^\[Theta]s)^(1 - \[Epsilon]));
Print["\[Eta]_{m,0}=" <> ToString[\[Eta]m0],
", \[Eta]_{s,0}=" <> ToString[\[Eta]s0],
$ |( ^* j) H* I) {: h# k ", x_{m,0}=" <> ToString[xm0], ", x_{s,0}=" <> ToString[xs0]]
. i& P- B) c# D1 s" lTT = 100;(* end time *)
(* Solve differential equations *)
Sol = NDSolve[{xs'[t] = (1 - \[Epsilon])*
# [$ z* k5 K4 ~9 T- _0 [     xs[t]*(   (1 - xs[t]/
8 J; M7 z' a# e) @6 \( ?9 [* h         B)*(\[Theta]s*\[CurlyPhi]s*(xs[t]/(ps*\[Eta]s[t]) - 1) -
         xm[t]/B \[Theta]m*\[CurlyPhi]m*(xm[t]/\[Eta]m[t] - 1))),
   xm'[t] == (1 - \[Epsilon])*
     xm[t]*(   (1 - xm[t]/
/ u6 Y: _* ]" `& Z. i          B)*\[Theta]m*\[CurlyPhi]m*(xm[t]/\[Eta]m[t] - 1) -
       xs[t]/B*\[Theta]s*\[CurlyPhi]s*(xs[t]/(ps*\[Eta]s[t]) -
' ^2 C% M6 O+ @          1) ), \[Eta]m'[
     t] == \[CurlyPhi]m*
; h- w1 v; @# |" Z: t) R      xm[t] - (\[CurlyPhi]m + gRate)*\[Eta]m[t], \[Eta]s'[
     t] == \[CurlyPhi]s*xs[t]/ps - (\[CurlyPhi]s + gRate)*\[Eta]s[t],
   K'[t] == gRate*K[t], hm[t] == \[Eta]m[t]*K[t],
   hs[t] == \[Eta]s[t]*K[t],
) E3 K, X  l0 @7 f   Sa[t] == (\[Gamma]a^\[Epsilon]*(pa)^(1 - \[Epsilon]))/(\[Gamma]a^\
$ j8 E, x' Y3 ^0 {1 P\[Epsilon]*pa^(1 - \[Epsilon]) + \[Gamma]m^\[Epsilon]*
! ~6 c3 Q7 R( m- L* r4 z       hm[t]^(\[Theta]m*(1 - \[Epsilon])) + \[Gamma]s^\[Epsilon]*(ps*
: m2 r8 u, G5 J. l         hs[t]^\[Theta]s)^(1 - \[Epsilon])) + (\[Gamma]m^\[Epsilon]*
' s0 y$ r) \: m7 N5 c7 Z' z      hm[t]^(\[Theta]m*(1 - \[Epsilon]))*pa*
      cap)/((\[Gamma]a^\[Epsilon]*pa^(
' x3 Q0 [) I& G: N9 ~         1 - \[Epsilon]) + \[Gamma]m^\[Epsilon]*
. s7 U9 }/ H' ~/ \4 h/ T0 w         hm[t]^(\[Theta]m*(1 - \[Epsilon])) + \
\[Gamma]s^\[Epsilon]*(ps*hs[t]^\[Theta]s)^(1 - \[Epsilon]))*k (t)*
+ s( y" C: r  ]" i- g      xm (t)),
3 z$ e  a# ^6 C) b# I   Sm[t] == (\[Gamma]m^\[Epsilon]*
4 r" Q! R0 g, V6 X. Q% U     hm[t]^(\[Theta]m*(1 - \[Epsilon])))/(\[Gamma]a^\[Epsilon]*pa^(
      1 - \[Epsilon]) + \[Gamma]m^\[Epsilon]*
      hm[t]^(\[Theta]m*(1 - \[Epsilon])) + \[Gamma]s^\[Epsilon]*(ps*
, e4 q4 ?; O) Z) q        hs[t]^\[Theta]s)^(1 - \[Epsilon])),
   Ss[t] == (\[Gamma]s^\[Epsilon]*(ps*
8 x4 Z& h- N  V0 a* u        hs[t]^\[Theta]s)^(1 - \[Epsilon]))/(\[Gamma]a^\[Epsilon]*pa^(
       1 - \[Epsilon]) + \[Gamma]m^\[Epsilon]*
       hm[t]^(\[Theta]m*(1 - \[Epsilon])) + \[Gamma]s^\[Epsilon]*(ps*
         hs[t]^\[Theta]s)^(1 - \[Epsilon])) - (\[Gamma]m^\[Epsilon]*
% B2 F4 w" C) j/ U      hm[t]^(\[Theta]m*(1 - \[Epsilon]))*ps*
      csp)/((\[Gamma]a^\[Epsilon]*pa^(
) I' B3 O% w7 M6 [         1 - \[Epsilon]) + \[Gamma]m^\[Epsilon]*
8 W: f% i7 a& }' p         hm[t]^(\[Theta]m*(1 - \[Epsilon])) + \
\[Gamma]s^\[Epsilon]*(ps*hs[t]^\[Theta]s)^(1 - \[Epsilon]))*k (t)*
      xm (t)), xm[0] == xm0,
   xs[0] == xs0, \[Eta]m[0] == \[Eta]m0, \[Eta]s[0] == \[Eta]s0,
1 h0 Y7 Q' I4 A3 A! |7 l   K[0] == K0}, {xm, xs, \[Eta]m, \[Eta]s, K, hm, hs, Sa, Sm, Ss}, {t,
/ c6 o1 [( t1 j( V$ c+ m- e# G    0, TT}]
4 o/ m8 d1 M2 S/ T6 M0 ^- L$ O8 ^- BPlot[{Evaluate[Sa[t] /. Sol], Evaluate[Sm[t] /. Sol],
  Evaluate[Ss[t] /. Sol]}, {t, 0, TT}, AxesOrigin -> {0, 0},
PlotRange -> {0., 0.8}, PlotStyle -> {Blue, Dashed, Dashing[{0.05}]}]
. `5 v# t4 I& b5 j& ePlot[{Evaluate[D*Sa[t] /. Sol],
  Evaluate[(D*Sm[t] + (\[Alpha]*(gRate + \[Delta]))/(\[Rho] +
       gRate)) /. Sol], Evaluate[D*Ss[t] /. Sol]}, {t, 0, TT},
  n# U( n" p, V AxesOrigin -> {0, 0}, PlotRange -> {0., 0.8},
PlotStyle -> {Blue, Dashed, Dashing[{0.05}]}]

1 z% o/ c  F+ i/ x# X% |1 Y


' r. c+ P/ P1 n$ U+ gSet::wrsym: Symbol D is Protected.

NDSolve::deqn: Equation or list of equations expected instead of 0.96 (1-6.66667 xs[t]) xs[t] (-0.5 xm[t] (-1+xm[t]/\[Eta]m[t])+0.09 (-1+(2.5 xs[t])/\[Eta]s[t])) in the first argument {0.96 (1-6.66667 xs[t]) xs[t] (-0.5 xm[t] (-1+xm[t]/\[Eta]m[<<1>>])+0.09 (-1+(2.5 xs[t])/\[Eta]s[<<1>>])),<<13>>,K[0]==10.}.
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+ o( U  G  R3 V- B6 Y7 W, o

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