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options = Display: 'iter' MaxFunEvals: [] MaxIter: [] TolFun: [] TolX: [] FunValCheck: [] OutputFcn: [] PlotFcns: [] ActiveConstrTol: [] Algorithm: [] AlwaysHonorConstraints: [] BranchStrategy: [] DerivativeCheck: [] Diagnostics: [] DiffMaxChange: [] DiffMinChange: [] FinDiffType: 'central' GoalsExactAchieve: [] GradConstr: [] GradObj: [] HessFcn: [] Hessian: [] HessMult: [] HessPattern: [] HessUpdate: [] InitialHessType: [] InitialHessMatrix: [] InitBarrierParam: [] InitTrustRegionRadius: [] Jacobian: [] JacobMult: [] JacobPattern: [] LargeScale: 'off' LevenbergMarquardt: [] LineSearchType: [] MaxNodes: [] MaxPCGIter: [] MaxProjCGIter: [] MaxRLPIter: [] MaxSQPIter: [] MaxTime: [] MeritFunction: [] MinAbsMax: [] NodeDisplayInterval: [] NodeSearchStrategy: [] NonlEqnAlgorithm: [] NoStopIfFlatInfeas: [] ObjectiveLimit: [] PhaseOneTotalScaling: [] Preconditioner: [] PrecondBandWidth: [] RelLineSrchBnd: [] RelLineSrchBndDuration: [] ScaleProblem: [] Simplex: [] SubproblemAlgorithm: [] TolCon: [] TolConSQP: [] TolGradCon: [] TolPCG: [] TolProjCG: [] TolProjCGAbs: [] TolRLPFun: [] TolXInteger: [] TypicalX: [] UseParallel: [] Norm of First-order Trust-region Iteration Func-count f(x) step optimality radius 0 3 2.06697e+014 2.49e+014 1 1 6 1.03581e+012 0.92278 2.86e+013 1 2 9 4.38753e+007 0.0759773 5.33e+011 2.31 3 12 0.0824035 0.000500989 3.85e+007 2.31 4 15 1.18085e-013 2.17124e-008 3.77e+003 2.31 5 16 1.18085e-013 3.37394e-017 3.77e+003 2.31 Equation solved, fsolve stalled. fsolve stopped because the relative size of the current step is less than the default value of the step size tolerance squared and the vector of function values is near zero as measured by the default value of the function tolerance. <stopping criteria details> x = 1.0000 0.9993 fval = 1.0e-006 * -0.3436 0.0006 extiflag = 2 output = iterations: 5 funcCount: 16 algorithm: 'trust-region-dogleg' firstorderopt: 3.7653e+003 message: [1x774 char] JAC = 1.0e+010 * 1.0957 -0.0000 -0.0013 0.0013 °ïÎÒ¿´¿´ÎÒµÄÎÊÌâ³öÔÚÄÄ£¬ÎÒ¸ÃÔõô½â¾ö£¿ÕâÊÇÒ»¸öÓÃÀ´¼ÆË㻯ѧƽºâ×é³É [ À´×ÔС×é »¯¹¤¹¤³Ì¹¤ÒÕ ] |
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2Â¥2013-07-26 14:51:35
alice919
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3Â¥2013-07-26 15:04:32
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4Â¥2013-07-26 15:06:35
alice919
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function ChemEquil clear all clc global P P=600; %ѹÁ¦µ¥Î»£ºkpa %m=50; %ÇâÆø£º²ÝËá¶þ¼×õ¥Ä¦¶û±È %KP1=[23.4 21.8 20.3 18.9 17.6 16.4 15.3 14.2 13.3 12.4 11.5 10.8]; %KP2=[0.0393 0.0375 0.0358 0.0342 0.0328 0.0314 0.0301 0.0289 0.0277 0.0267... % 0.0257 0.0247]; %KP3=[4.4346E05 3.6476E05 3.0202E05 2.5168E05 2.1101E05 1.7796E05 1.5094E05... %1.2872E05 1.1036E05 0.9509E05 0.8233E05 0.7163E05]; %x0=0.001; %x=fsolve(@equil1,x0,[]) x0=[1 0 ]'; options=optimset('Display','iter', 'LargeScale','off','TolFun', 1.0e-22,'TolX',1.0e-22) [x,fval,extiflag,output,JAC]=fsolve(@equil1,x0,options) %................................................... %ƽºâ×é³É¹ØÏµÊ½ function f=equil1(x) global P %f=x^2*(51-x)-21.8*((50-2*x)^2*(1-x)*P) tmp1=50-2*x(1)-2*x(2); tmp2=51-x(1)-x(2); f(1)=(x(1)-x(2))*(x(1)+x(2))*tmp2*100-8630*((1-x(1))*tmp1^2*P); f(2)=(x(1)+x(2))*x(2)*tmp2*100-10.4*((x(1)-x(2))*tmp1^2*P); ÕâÊÇÔ´³ÌÐò£¬¿ÉÒÔ°ïÎÒ¿´¿´´íÔÚÄÄ£¿ÊDz»ÊÇÒª¸ÄËã·¨ |
5Â¥2013-07-26 15:07:09
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6Â¥2013-07-26 15:23:01
alice919
½ð³æ (СÓÐÃûÆø)
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7Â¥2013-07-26 15:31:25
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xiegangmai: ½ð±Ò+2, ¹ÄÀøÌÖÂÛ½»Á÷£¡ 2013-08-01 22:34:08
xiegangmai: ½ð±Ò+2, ¹ÄÀøÌÖÂÛ½»Á÷£¡ 2013-08-01 22:34:08
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³öÏÖÁË¡£ ÕâÒ»×éxÒѾʹµÃÔ·½³ÌÏ൱½Ó½üÓÚ0ÁË£¬Èç¹ûÕâ×é½â·ûºÏʵ¼ÊµÄ»°£¬¾Í¿ÉÒÔ²ÉÓᣠMATLABµÄHelpÖÐEquation Solved, fsolve StalledµÄÒâ˼ÊÇ£º fsolve found a point where the sum of squares of function values is less than the square root of the TolFun tolerance. However, the last step was less than the TolX tolerance, indicating the function may be changing rapidly, or that the function is not smooth near the final point. This is the meaning of stalled. |

8Â¥2013-07-26 15:40:42
alice919
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9Â¥2013-07-26 15:44:18
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Ö÷¹ÜÇø³¤ (Ö°Òµ×÷¼Ò)
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ר¼Ò¾Ñé: +1059 - Ó¦Öú: 1712 (½²Ê¦)
- ¹ó±ö: 8.888
- ½ð±Ò: 68126.7
- É¢½ð: 1938
- ºì»¨: 443
- ɳ·¢: 4
- Ìû×Ó: 4373
- ÔÚÏß: 3291.4Сʱ
- ³æºÅ: 1122189
- ×¢²á: 2010-10-14
- רҵ: ÓîÖæÑ§
- ¹ÜϽ: ¼ÆËãÄ£ÄâÇø

10Â¥2013-07-26 15:46:34













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