level 2
小刘刘shine
楼主
式中的参数已带入，这是什么原因呢？？？
In[1]:= eqns[sigma2_] :=
0.25*miu22^2*g2^2*
a2^2 + (g2*a2*(3*sigma2 - sigma1) + 0.375*alpha2*S22*a2^3 +
0.25*alpha2*S42*a1^2*a2)^2 - 0.015625*alpha2^2*S12^2*a1^6 =
0 &&
(0.5*miu11*g1*alpha2*S12*a1^2 +
0.5*miu22*g2*alpha1*S41*a2^2)^2 + (g1*alpha2*S12*sigma2*
a1^2 + 0.375*alpha1*alpha2*S11*S12*a1^4 +
0.25*alpha1*alpha2*(S12*S31 - S41*S42)*a1^2*a2^2 -
g2*alpha1*S41*a2^2*(3*sigma2 - sigma1) -
0.375*alpha1*alpha2*S22*S41*a2^4)^2 -
alpha2^2*S12^2*f1^2*a1^2 = 0 && a1 >= 0 && a2 >= 0 /. r;
Export["C:\\Users\\MR\\Desktop\\matlab\\a1.csv",
Table[{sigma2, #} & /@ (a1 /.
NSolve[eqns[sigma2], {a1, a2}, Reals]), {sigma2, -0.01, 20,
0.01}] // Flatten[#, {1, 2}] &]
Export["C:\\Users\\MR\\Desktop\\matlab\\a2.csv",
Table[{sigma2, #} & /@ (a2 /.
NSolve[eqns[sigma2], {a1, a2}, Reals]), {sigma2, -0.01, 20,
0.01}] // Flatten[#, {1, 2}] &]
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {r} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag And in 0&&(0.5 miu11 g1 alpha2 S12 a1^2+0.5 miu22 g2 alpha1 S41 a2^2)^2+(g1 alpha2 S12 (-0.01) a1^2+0.375 alpha1 alpha2 S11 S12 a1^4+0.25 alpha1 alpha2 (S12 S31-Times[<<2>>]) a1^2 a2^2-g2 alpha1 S41 a2^2 (Times[<<2>>]+Times[<<2>>])-0.375 alpha1 alpha2 S22 S41 a2^4)^2-alpha2^2 S12^2 f1^2 a1^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag Plus in 0.25 a2^2 g2^2 miu22^2-0.015625 a1^6 alpha2^2 S12^2+(0.375 a2^3 alpha2 S22+0.25 a1^2 a2 alpha2 S42+a2 g2 (-0.03-sigma1))^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {-0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of ReplaceAll::reps will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag And in 0&&(0.5 miu11 g1 alpha2 S12 a1^2+0.5 miu22 g2 alpha1 S41 a2^2)^2+(g1 alpha2 S12 0. a1^2+0.375 alpha1 alpha2 S11 S12 a1^4+0.25 alpha1 alpha2 (S12 S31-Times[<<2>>]) a1^2 a2^2-g2 alpha1 S41 a2^2 (Times[<<2>>]+Times[<<2>>])-0.375 alpha1 alpha2 S22 S41 a2^4)^2-alpha2^2 S12^2 f1^2 a1^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of Set::write will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of NSolve::nsmet will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= Flatten::fldep: Level 2 specified in {{1,2}} exceeds the levels, 1, which can be flattened together in {{-0.01,a1}/. {-0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.,a1}/. {0.,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.01,a1}/. {0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.02,a1}/. {0.02,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.03,a1}/. {0.03,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.04,a1}/. {0.04,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.05,a1}/. {0.05,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},<<38>>,{0.44,a1}/. {0.44,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.45,a1}/. {0.45,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.46,a1}/. {0.46,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.47,a1}/. {0.47,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.48,a1}/. {0.48,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},<<1952>>}.
Out[2]= "C:\\Users\\MR\\Desktop\\matlab\\a1.csv"
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag And in 0&&(0.5 miu11 g1 alpha2 S12 a1^2+0.5 miu22 g2 alpha1 S41 a2^2)^2+(g1 alpha2 S12 (-0.01) a1^2+0.375 alpha1 alpha2 S11 S12 a1^4+0.25 alpha1 alpha2 (S12 S31-Times[<<2>>]) a1^2 a2^2-g2 alpha1 S41 a2^2 (Times[<<2>>]+Times[<<2>>])-0.375 alpha1 alpha2 S22 S41 a2^4)^2-alpha2^2 S12^2 f1^2 a1^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag Plus in 0.25 a2^2 g2^2 miu22^2-0.015625 a1^6 alpha2^2 S12^2+(0.375 a2^3 alpha2 S22+0.25 a1^2 a2 alpha2 S42+a2 g2 (-0.03-sigma1))^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {-0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag And in 0&&(0.5 miu11 g1 alpha2 S12 a1^2+0.5 miu22 g2 alpha1 S41 a2^2)^2+(g1 alpha2 S12 0. a1^2+0.375 alpha1 alpha2 S11 S12 a1^4+0.25 alpha1 alpha2 (S12 S31-Times[<<2>>]) a1^2 a2^2-g2 alpha1 S41 a2^2 (Times[<<2>>]+Times[<<2>>])-0.375 alpha1 alpha2 S22 S41 a2^4)^2-alpha2^2 S12^2 f1^2 a1^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of Set::write will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of ReplaceAll::reps will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of NSolve::nsmet will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= Flatten::fldep: Level 2 specified in {{1,2}} exceeds the levels, 1, which can be flattened together in {{-0.01,a2}/. {-0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.,a2}/. {0.,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.01,a2}/. {0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.02,a2}/. {0.02,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.03,a2}/. {0.03,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.04,a2}/. {0.04,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.05,a2}/. {0.05,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},<<38>>,{0.44,a2}/. {0.44,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.45,a2}/. {0.45,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.46,a2}/. {0.46,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.47,a2}/. {0.47,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.48,a2}/. {0.48,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},<<1952>>}.
Out[3]= "C:\\Users\\MR\\Desktop\\matlab\\a2.csv"
2019年03月19日 01点03分
1
In[1]:= eqns[sigma2_] :=
0.25*miu22^2*g2^2*
a2^2 + (g2*a2*(3*sigma2 - sigma1) + 0.375*alpha2*S22*a2^3 +
0.25*alpha2*S42*a1^2*a2)^2 - 0.015625*alpha2^2*S12^2*a1^6 =
0 &&
(0.5*miu11*g1*alpha2*S12*a1^2 +
0.5*miu22*g2*alpha1*S41*a2^2)^2 + (g1*alpha2*S12*sigma2*
a1^2 + 0.375*alpha1*alpha2*S11*S12*a1^4 +
0.25*alpha1*alpha2*(S12*S31 - S41*S42)*a1^2*a2^2 -
g2*alpha1*S41*a2^2*(3*sigma2 - sigma1) -
0.375*alpha1*alpha2*S22*S41*a2^4)^2 -
alpha2^2*S12^2*f1^2*a1^2 = 0 && a1 >= 0 && a2 >= 0 /. r;
Export["C:\\Users\\MR\\Desktop\\matlab\\a1.csv",
Table[{sigma2, #} & /@ (a1 /.
NSolve[eqns[sigma2], {a1, a2}, Reals]), {sigma2, -0.01, 20,
0.01}] // Flatten[#, {1, 2}] &]
Export["C:\\Users\\MR\\Desktop\\matlab\\a2.csv",
Table[{sigma2, #} & /@ (a2 /.
NSolve[eqns[sigma2], {a1, a2}, Reals]), {sigma2, -0.01, 20,
0.01}] // Flatten[#, {1, 2}] &]
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {r} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag And in 0&&(0.5 miu11 g1 alpha2 S12 a1^2+0.5 miu22 g2 alpha1 S41 a2^2)^2+(g1 alpha2 S12 (-0.01) a1^2+0.375 alpha1 alpha2 S11 S12 a1^4+0.25 alpha1 alpha2 (S12 S31-Times[<<2>>]) a1^2 a2^2-g2 alpha1 S41 a2^2 (Times[<<2>>]+Times[<<2>>])-0.375 alpha1 alpha2 S22 S41 a2^4)^2-alpha2^2 S12^2 f1^2 a1^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag Plus in 0.25 a2^2 g2^2 miu22^2-0.015625 a1^6 alpha2^2 S12^2+(0.375 a2^3 alpha2 S22+0.25 a1^2 a2 alpha2 S42+a2 g2 (-0.03-sigma1))^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {-0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of ReplaceAll::reps will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag And in 0&&(0.5 miu11 g1 alpha2 S12 a1^2+0.5 miu22 g2 alpha1 S41 a2^2)^2+(g1 alpha2 S12 0. a1^2+0.375 alpha1 alpha2 S11 S12 a1^4+0.25 alpha1 alpha2 (S12 S31-Times[<<2>>]) a1^2 a2^2-g2 alpha1 S41 a2^2 (Times[<<2>>]+Times[<<2>>])-0.375 alpha1 alpha2 S22 S41 a2^4)^2-alpha2^2 S12^2 f1^2 a1^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of Set::write will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of NSolve::nsmet will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= Flatten::fldep: Level 2 specified in {{1,2}} exceeds the levels, 1, which can be flattened together in {{-0.01,a1}/. {-0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.,a1}/. {0.,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.01,a1}/. {0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.02,a1}/. {0.02,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.03,a1}/. {0.03,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.04,a1}/. {0.04,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.05,a1}/. {0.05,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},<<38>>,{0.44,a1}/. {0.44,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.45,a1}/. {0.45,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.46,a1}/. {0.46,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.47,a1}/. {0.47,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.48,a1}/. {0.48,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},<<1952>>}.
Out[2]= "C:\\Users\\MR\\Desktop\\matlab\\a1.csv"
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag And in 0&&(0.5 miu11 g1 alpha2 S12 a1^2+0.5 miu22 g2 alpha1 S41 a2^2)^2+(g1 alpha2 S12 (-0.01) a1^2+0.375 alpha1 alpha2 S11 S12 a1^4+0.25 alpha1 alpha2 (S12 S31-Times[<<2>>]) a1^2 a2^2-g2 alpha1 S41 a2^2 (Times[<<2>>]+Times[<<2>>])-0.375 alpha1 alpha2 S22 S41 a2^4)^2-alpha2^2 S12^2 f1^2 a1^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag Plus in 0.25 a2^2 g2^2 miu22^2-0.015625 a1^6 alpha2^2 S12^2+(0.375 a2^3 alpha2 S22+0.25 a1^2 a2 alpha2 S42+a2 g2 (-0.03-sigma1))^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {-0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= Set::write: Tag And in 0&&(0.5 miu11 g1 alpha2 S12 a1^2+0.5 miu22 g2 alpha1 S41 a2^2)^2+(g1 alpha2 S12 0. a1^2+0.375 alpha1 alpha2 S11 S12 a1^4+0.25 alpha1 alpha2 (S12 S31-Times[<<2>>]) a1^2 a2^2-g2 alpha1 S41 a2^2 (Times[<<2>>]+Times[<<2>>])-0.375 alpha1 alpha2 S22 S41 a2^4)^2-alpha2^2 S12^2 f1^2 a1^2 is Protected.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of Set::write will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= ReplaceAll::reps: {NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]} is neither a list of replacement rules nor a valid dispatch table, and so cannot be used for replacing.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of ReplaceAll::reps will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= NSolve::nsmet: This system cannot be solved with the methods available to NSolve.
\:6B63\:5728\:8BA1\:7B97In[1]:= General::stop: Further output of NSolve::nsmet will be suppressed during this calculation.
\:6B63\:5728\:8BA1\:7B97In[1]:= Flatten::fldep: Level 2 specified in {{1,2}} exceeds the levels, 1, which can be flattened together in {{-0.01,a2}/. {-0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.,a2}/. {0.,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.01,a2}/. {0.01,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.02,a2}/. {0.02,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.03,a2}/. {0.03,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.04,a2}/. {0.04,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.05,a2}/. {0.05,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},<<38>>,{0.44,a2}/. {0.44,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.45,a2}/. {0.45,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.46,a2}/. {0.46,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.47,a2}/. {0.47,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},{0.48,a2}/. {0.48,NSolve[0&&a1>=0&&a2>=0/. r,{a1,a2},Reals]},<<1952>>}.
Out[3]= "C:\\Users\\MR\\Desktop\\matlab\\a2.csv"
