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524633857木蟲 (小有名氣)
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[求助]
多元函數(shù)求最大值
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這個不屬于前沿,屬于研究方法,注意發(fā)貼分類,已經(jīng)幫你修改了 方程y=94.011+3.886*x(1)+1.842*x(2)+3.052*x(3)+3.063*x(4)-2.255*x(1)^2-0.773*x(2)^2-0.748*x(3)^2-3.079*x(4)^2-1.802*x(1)*x(2)-1.526*x(1)*x(3)+1.180*x(1)*x(4)-2.246*x(2)*x(3)-1.102*x(2)*x(4)-1.146*x(3)*x(4) 在區(qū)間【2,2】,y<100 條件下的最大值是多少,高手能不能幫忙求一下,直接給出x和y的值分別是多少?( [ Last edited by dbb627 on 2011-10-16 at 00:01 ] |
榮譽版主 (著名寫手)
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結(jié)果 Warning: Trust-region-reflective algorithm does not solve this type of problem, using active-set algorithm. You could also try the interior-point or sqp algorithms: set the Algorithm option to 'interior-point' or 'sqp' and rerun. For more help, see Choosing the Algorithm in the documentation. > In fmincon at 472 In AAAA at 8 Local minimum possible. Constraints satisfied. fmincon stopped because the predicted change in the objective function is less than the default value of the function tolerance and constraints were satisfied to within the default value of the constraint tolerance. Active inequalities (to within options.TolCon = 1e-006): lower upper ineqlin ineqnonlin 2 X = 1.5853 -2.0000 0.7306 0.9674 FVAL = 2.7821e-009 EXITFLAG = 5 ans = 99.9999 |

木蟲 (小有名氣)
榮譽版主 (著名寫手)
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專家經(jīng)驗: +4 |

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