上官 发表于 2020-3-24 15:32

mathematica一直运行没错误,大家帮忙看一下

Clear, \, \m, \s, \
\m, \s, \]
\a = 0.1; \m = 0.15; \s =
1 - \a - \m;
\ = 0.04; \ = 0.3; \ = 0.04;
\m = 0.75; \s = 0.9;
gRate = 0.02;
Am = (gRate + \)/\; Ba = 4; Bm = 1; Bs = 2.5;
ps = Bm/Bs; pa = Bm/Ba;
\ = 0.03;
B = \!\(TraditionalForm\`\*
FractionBox[
RowBox[{
RowBox[{
RowBox[{
StyleBox["(",
SpanMinSize->1.,
SpanMaxSize->1.],
RowBox[{"1", "\", "\"}],
StyleBox[")",
SpanMinSize->1.,
SpanMaxSize->1.]}], "gRate"}], "+", "\"}],
      "\"] \ \\);
cap = 10;
csp = (pa*cap)/ps;
D = ((1 \ \)*
    gRate + \ - \*\)/(\ + gRate);
\m = 0.1; \s = 0.1;
Print["*** Initial Values ***"]
E0 = 1.5;
K0 = E0/B;
hm0 = 0.25; hs0 = 0.25;(* initial values *)
\m0 = hm0/K0; \s0 = hs0/K0;
xm0 = (B*\m^\*
   hm0^(\m*(1 - \)))/(\a^\*pa^(
    1 - \) + \m^\*
    hm0^(\m*(1 - \)) + \s^\*(ps*
      hs0^\s)^(1 - \));
xs0 = (B*\s^\*(ps*
     hs0^\s)^(1 - \))/(\a^\*pa^(
    1 - \) + \m^\*
    hm0^(\m*(1 - \)) + \s^\*(ps*
      hs0^\s)^(1 - \));
Print["\_{m,0}=" <> ToString[\m0],
", \_{s,0}=" <> ToString[\s0],
", x_{m,0}=" <> ToString, ", x_{s,0}=" <> ToString]
TT = 100;(* end time *)
(* Solve differential equations *)
Sol = NDSolve[{xs' = (1 - \)*
     xs*(   (1 - xs/
         B)*(\s*\s*(xs/(ps*\s) - 1) -
         xm/B \m*\m*(xm/\m - 1))),
   xm' == (1 - \)*
     xm*(   (1 - xm/
          B)*\m*\m*(xm/\m - 1) -
       xs/B*\s*\s*(xs/(ps*\s) -
          1) ), \m'[
     t] == \m*
      xm - (\m + gRate)*\m, \s'[
     t] == \s*xs/ps - (\s + gRate)*\s,
   K' == gRate*K, hm == \m*K,
   hs == \s*K,
   Sa == (\a^\*(pa)^(1 - \))/(\a^\
\*pa^(1 - \) + \m^\*
       hm^(\m*(1 - \)) + \s^\*(ps*
         hs^\s)^(1 - \)) + (\m^\*
      hm^(\m*(1 - \))*pa*
      cap)/((\a^\*pa^(
         1 - \) + \m^\*
         hm^(\m*(1 - \)) + \
\s^\*(ps*hs^\s)^(1 - \))*k (t)*
      xm (t)),
   Sm == (\m^\*
     hm^(\m*(1 - \)))/(\a^\*pa^(
      1 - \) + \m^\*
      hm^(\m*(1 - \)) + \s^\*(ps*
        hs^\s)^(1 - \)),
   Ss == (\s^\*(ps*
        hs^\s)^(1 - \))/(\a^\*pa^(
       1 - \) + \m^\*
       hm^(\m*(1 - \)) + \s^\*(ps*
         hs^\s)^(1 - \)) - (\m^\*
      hm^(\m*(1 - \))*ps*
      csp)/((\a^\*pa^(
         1 - \) + \m^\*
         hm^(\m*(1 - \)) + \
\s^\*(ps*hs^\s)^(1 - \))*k (t)*
      xm (t)), xm == xm0,
   xs == xs0, \m == \m0, \s == \s0,
   K == K0}, {xm, xs, \m, \s, K, hm, hs, Sa, Sm, Ss}, {t,
    0, TT}]
Plot[{Evaluate /. Sol], Evaluate /. Sol],
  Evaluate /. Sol]}, {t, 0, TT}, AxesOrigin -> {0, 0},
PlotRange -> {0., 0.8}, PlotStyle -> {Blue, Dashed, Dashing[{0.05}]}]
Plot[{Evaluate /. Sol],
  Evaluate[(D*Sm + (\*(gRate + \))/(\ +
       gRate)) /. Sol], Evaluate /. Sol]}, {t, 0, TT},
AxesOrigin -> {0, 0}, PlotRange -> {0., 0.8},
PlotStyle -> {Blue, Dashed, Dashing[{0.05}]}]




Set::wrsym: Symbol D is Protected.

NDSolve::deqn: Equation or list of equations expected instead of 0.96 (1-6.66667 xs) xs (-0.5 xm (-1+xm/\m)+0.09 (-1+(2.5 xs)/\s)) in the first argument {0.96 (1-6.66667 xs) xs (-0.5 xm (-1+xm/\m[<<1>>])+0.09 (-1+(2.5 xs)/\s[<<1>>])),<<13>>,K==10.}.




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