文档介绍：Document number【SA80SAB-SAA9SYT-SAATC-SA6UT-SA18】
数学建模天然肠衣
天然肠衣
天然肠衣（以下简称肠衣）制作加工是我国的一个传统产业，出口量占世界首位。肠衣经过清5<=27 x316<=16 x317<=12 x318<=2 x319<=6 x320<=1
模型求解：
max y1+y2+y3
.
x11+x12+x13+x14+x15+x16+x17+x18-20y1>=0
x21+x22+x23+x24+x25+x26+x27+x28+x29+x210+x211+x212+x213+x214-8y1>=0
x31+x32+x33+x34+x35+x36+x37+x38+x39+x310+x311+x312+x313+x314+x315+x316+x317+x318+x319+x320-5y3>=0
3x11++4x13++5x15++6x17+>=0
7x21++8x23++9x25++10x27++11x29++12x211++13x213+>=0,
14x31++15x33++16x35++17x37++18x39++19x311++20x313++21x315++22x317+++>=0
x11<=43 x12<=59 x13<=39 x14<=41 x15<=27 x16<=28 x17<=34 x18<=21
x21<=24 x22<=24 x23<=20 x24<=25 x25<=21 x26<=23 x27<=21 x28<=18 x29<=31 x210<=23 x211<=22 x212<=59 x213<=18 x214<=25
x31<=35 x32<=29 x33<=30 x34<=42 x35<=28 x36<=42 x37<=45 x38<=49 x39<=50 x310<=64 x311<=52 x312<=63 x313<=49 x314<=45
x315<=27 x316<=16 x317<=12 x318<=2 x319<=6 x320<=1
end
求解得：
LP OPTIMUM FOUND AT STEP 54
OBJECTIVE FUNCTION VALUE
1)
VARIABLE VALUE REDUCED COST
Y1
Y2
Y3
X11
X12
X13
X14
X15
X16
X17
X18