例2 加工奶制品的生产计划程序如下
max 72x+64y 1行
st
x+y<50 2行 牛奶约束
12x+8y<480 3行 劳力约束
3x<100 4行 甲类设备约束
end
结果报告
LP OPTIMUM FOUND AT STEP 2
OBJECTIVE FUNCTION VALUE
1) 3360.000
VARIABLE VALUE REDUCED COST
X 20.000000 0.000000
Y 30.000000 0.000000
ROW SLACK OR SURPLUS DUAL PRICES
2) 0.000000 48.000000（影子价格）
3) 0.000000 2.000000
4) 40.000000 0.000000
NO,ITERATIONS= 2
RANGES IN WHICH THE BASIS IS UNCHANGED:
OBJ COEFFICIENT RANGES
VARIABLE CURRENT ALLOWABLE ALLOWABLE
COEF INCREASE DECREASE
X 72.000000 24.000000 8.000000
Y 64.000000 8.000000 16.000000
RIGHTHAND SIDE RANGES
ROW CURRENT ALLOWABLE ALLOWABLE
RHS INCREASE DECREASE
2 50.000000 10.000000 6.666667
3 480.000000 53.333332 80.000000
4 100.000000 INFINITY 40.000000