47页1.1b
word/media/image1.gif
用图解法找不到满足所有约束条件的公共范围,所以该问题无可行解
47页1.1d
word/media/image2.gif
无界解
word/media/image3.gif1.2(b)
约束方程的系数矩阵 A= 1 2 3 4
2 1 1 2
P1 P2 P3 P4
最优解A=(0 1/2 2 0)T和(0 0 1 1)T
49页13题
设Xij为第i月租j个月的面积
minz=2800x11+2800x21+2800x31+2800x41+4500x12+4500x22+4500x32+6000x13 +6000x23+7300x14
s.t.
word/media/image4.gif x11+x12+x13+x14≥15
x12+x13+x14+x21+x22+x23≥10
x13+x14+x22+x23+x31+x32≥20
x14+x23+x32+x41≥12
Xij≥0
用excel求解为:
用LINDO求解:
LP OPTIMUM FOUND AT STEP 3
OBJECTIVE FUNCTION VALUE
1) 118400.0
VARIABLE VALUE REDUCED COST
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