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'ʵȨķزͶʾ'
2220089ϵͳѧFuzzy Systems and MathematicsʵȨķزͶʾ.лȨ(شѧѧԺ?㶫529020)ժҪ˷زͶYתԷʵȨģ۵.ʵﱪȨģΪδֵֽͶ ǡ?Dzʵʵ?0ʾẬʵȨ۹ ʵȨͨʵ}ɸ׃аܵ.ءز*ʵȨͼ0159 Ľرʶ:A1ڷزͶʾҪͶĿͶʼֵձõ ÷ΪĿͶʼֵΪԤδֵֽ֮ͶǿͶ ԵĵȼȻڷزͶ,Щʵһ·زͶܾθ صδвȷزͶʾвһͶȥԳ; Ͷ߾ѡȨȿѡʱͶҲӳͶ?ǸԵġֽ ʱĿͶʼֵ͹?ʵȨǡÿԿ˷ЩȱΪ ĿͶʼֵȡδֽ},ȡδͶʻ,ѧ ʵȨоͶʾ?(2006ʵȨԷزͶĿ ɵ(2004)ʵȨĶģҵзĿļֵ?ЩģͶ ͶĿ漰Ͷʳɱȷ?ʵflDzȷ?ݾ?ģ ʾõѡʾȷԱ䃔ʵȨӦ ʵȨģʵʾ.2֪ʶһִ,Ϊ=(a,6,c),ȺΪһ b _ aA(z) = _lc һݲأʾؼΪ˼㷽,ʾ,=[(),()]a e [o,i].? H վ 120087545ĹĿ㶫ʡȻѧĿ(5013318߼:л(1980 )??ооѧ빤Ȩ(1946 ),о^ѧ빤? Ϣ.A n (a,b,c),[a + (6 - a)c (c 6)ˣ.ڴ˻AľֵE(A)ͷ*().EU) =0()+統=(4,6,C)ʱ-Jo?(A) = v + (I)0 0ҵ)=?A{p1W _ѪŶ+()_Ĵ=Ҳ()һ a2(A)2iZA, 4 = (a,6,c)ʱ^(A) = (e ~ a)? (2)3ʵȨģ3.1ʵȨģͶʿɷΪʵͶʺͽͶزͶʵͶͶͶӵڿ ȨƵһȨڽһʱ֧һͶʳɱõһͶͶ߿ ݵǰʽûʹȨڷزͶ,Ͷʻһڿ ȨͶĿ൱ڽȨı,ĿͶʳɱֵ൱ͶĿȨִм۸Ͷ Ŀֵ൱Ȩбļ۸,ڲʧȥͶʻǰͶʿӳٵʱ ȨĴʱͶĿδ治ȷ൱ڽȨеIJ.ԷزĿ ˵ڴڸĿȨЩúȨ۹ ʽͶѡȨļֵROV = Ve"N(dJ һ CLNg - (3)? =׽С ʿ(5=һ5?a vtR0ΪʵȨֵ;Ϊδֵֽ;cΪͶʵԤڳɱΪ޷"ΪͶʻ 2ΪزгֵIJ;gΪͶʹ̵ļֵʧ,N(?)Ϊֲ̬?ӶԽ ʵȨģREV = NPV + ROVVΪزͶʼֵ,NPUΪֵֽREV>0ʱ,ΪĿֵͶ ͶһʽеCһȷڷزͶʾкܴIJȷC һȷǿʾʾVC.3.2ʵȨģU=(,ذ)Ŀֵֽ,ͬC= (C,C2G )ʾͶʵܳ ,VC(3ʽʵȨֵΪFROV=(ذ,2,)")һ(GGOLNa) ?=(ذeFN(d?) - һ ӦؿԽʵȨģ:REV = E(NPV+ E(FROV) E(NW)ΪͶĿԤֵֽľֵE(FROV)ΪʵȨֵľֵͶʾ ʱֻѡR?V>0ĿͶ4ݹijزͶĿԤֵֽΪ(λΪԪ);V=(300,400,500),Ͷʳɱ Ϊ C= (430,450,470)*= 8%=4 ,g=l%մͳľ߷NPV = V-C= (- 170, һ 50,70),ʽ(1)֪E(NPV)= һ 50ԪΪE(NPV) < 0,ͶӦĿʵȨо߷ʽʽ(2)* E(V)=+4" = 400; W= J" = 40. 82$Բ=s =10. 21%Matlab,ʽ(3),ʽ(4)FROV = (14. 2553,66. 3066,140. 7081).ֵ E(FROV) = 70. 0316Ԫ÷زĿͶʼֵ:REV= 50+70. 0316=20. 0316( Ԫ.Կ÷زĿļֵΪ20.0316>0,ʾĿͶ?ʵʾ ӦۺϿԤֵֽľֵE(NPV) =-50<0tͶӦ÷ ĿʵȨֵҲDzȷʵȨֵ㲢ʾĿ ͶΪʵȨֵӳͶʴڻͶʾܲʵȨֵ ֻʾͶ߿Գи÷زĿͶȨȴƵı仯Ǽ򵥵ķ Ŀ5ڷزĿͶصӰ,вȷôͳͶʾ߷ûпǵ ĿͶеIJȷԼԵļֵǽʵȨģøģͶԷزĿ Ͷʾʱ,Ϊʵģ
  
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