求教:这个模型错在那?用lindo怎么求解不了请高手指教?急啊!

huangma

<>MIN<BR>  -0.5833X11-0.5833X21+X31-0.3333X41+0X51+0X61-0.5X71-0.5X81<BR>-0.8333X12-0.3333X22+0.5833X32-0.5X42-0.0833X52+0.0833X62-0.4167X72-0.5833X82<BR>-1.5X13-X23-0.25X33-X43-0.75X53+0.25X63-X73-0.75X83<BR>-1.0833X14-0.8333X24+0.3333X34-0.75X44-0.3333X54+0.0833X64-0.6667X74-0.5833X84<BR>ST<BR>X11+X21+X31+X41+X51+X61+X71+X81&gt;=1<BR>X12+X22+X32+X42+X52+X62+X72+X82&gt;=2<BR>X13+X23+X33+X43+X53+X63+X73+X83&gt;=2<BR>X14+X24+X34+X44+X54+X64+X74+X84&gt;=2<BR>X11+X12+X13+X14=1<BR>X21+X22+X23+X24=1<BR>X31+X32+X33+X34=1<BR>X41+X42+X43+X44=1<BR>X51+X52+X53+X54=1<BR>X61+X62+X63+X64=1<BR>X71+X72+X73+X74=1<BR>X81+X82+X83+X84=1<BR>END<BR>INT32<BR><BR>:GO</P>
<><BR> </P>

guochenfei

<><FONT color=#0000ff>MIN  -0.5833X11-0.5833X21+X31-0.3333X41+0X51+0X61-0.5X71-0.5X81<BR>-0.8333X12-0.3333X22+0.5833X32-0.5X42-0.0833X52+0.0833X62-0.4167X72-0.5833X82<BR>-1.5X13-X23-0.25X33-X43-0.75X53+0.25X63-X73-0.75X83<BR>-1.0833X14-0.8333X24+0.3333X34-0.75X44-0.3333X54+0.0833X64-0.6667X74-0.5833X84<BR>S.T.<BR>2)X11+X21+X31+X41+X51+X61+X71+X81&gt;=1<BR>3)X12+X22+X32+X42+X52+X62+X72+X82&gt;=2<BR>4)X13+X23+X33+X43+X53+X63+X73+X83&gt;=2<BR>5)X14+X24+X34+X44+X54+X64+X74+X84&gt;=2<BR>6)X11+X12+X13+X14=1<BR>7)X21+X22+X23+X24=1<BR>8)X31+X32+X33+X34=1<BR>9)X41+X42+X43+X44=1<BR>10)X51+X52+X53+X54=1<BR>11)X61+X62+X63+X64=1<BR>12)X71+X72+X73+X74=1<BR>13)X81+X82+X83+X84=1<BR>END<BR></FONT></P>

huangma

运算不了

dingd

<>好像很简单</P>
<>====== 结果 ======</P>
<>迭代数: 20<BR>算法：单纯形线性规划法<BR>该线性规划的最小(Min)为：-5.0833</P>
<P>参数最优解为：<BR>    x11: 0<BR>    x21: 0<BR>    x31: 0<BR>    x41: 0<BR>    x51: 0<BR>    x61: 0<BR>    x71: 1<BR>    x81: 0<BR>    x12: 0<BR>    x22: 0<BR>    x32: 0<BR>    x42: 0<BR>    x52: 0<BR>    x62: 1<BR>    x72: 0<BR>    x82: 1<BR>    x13: 1<BR>    x23: 0<BR>    x33: 1<BR>    x43: 0<BR>    x53: 1<BR>    x63: 0<BR>    x73: 0<BR>    x83: 0<BR>    x14: 0<BR>    x24: 1<BR>    x34: 0<BR>    x44: 1<BR>    x54: 0<BR>    x64: 0<BR>    x74: 0<BR>    x84: 0</P>
<P>约束条件:<BR>    1: x11+x21+x31+x41+x51+x61+x71+x81-(1) = 0<BR>    2: x12+x22+x32+x42+x52+x62+x72+x82-(2) = 0<BR>    3: x13+x23+x33+x43+x53+x63+x73+x83-(2) = 1<BR>    4: x14+x24+x34+x44+x54+x64+x74+x84-(2) = 0<BR>    5: x11+x12+x13+x14-(1) = 0<BR>    6: x21+x22+x23+x24-(1) = 0<BR>    7: x31+x32+x33+x34-(1) = 0<BR>    8: x41+x42+x43+x44-(1) = 0<BR>    9: x51+x52+x53+x54-(1) = 0<BR>    10: x61+x62+x63+x64-(1) = 0<BR>    11: x71+x72+x73+x74-(1) = 0<BR>    12: x81+x82+x83+x84-(1) = 0</P>