LINGO分段函数怎么求!sets:position/1..7/:x,f;society/1..15/:r,Y;endsetsdata:r=2 14 3 6 9 4 8 12 10 11 6 14 9 3 6;f=9 6.5 20 14.5 19 13 10.5;enddatamax=@sum(society(i):y(i));Y(1)=@if(x(1)#eq#1,0.7*r(1),0);Y(2)=@if((x(1)+x(2))#le#0,0,@if((x(1)+x(
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![LINGO分段函数怎么求!sets:position/1..7/:x,f;society/1..15/:r,Y;endsetsdata:r=2 14 3 6 9 4 8 12 10 11 6 14 9 3 6;f=9 6.5 20 14.5 19 13 10.5;enddatamax=@sum(society(i):y(i));Y(1)=@if(x(1)#eq#1,0.7*r(1),0);Y(2)=@if((x(1)+x(2))#le#0,0,@if((x(1)+x(](/uploads/image/z/5167465-25-5.jpg?t=LINGO%E5%88%86%E6%AE%B5%E5%87%BD%E6%95%B0%E6%80%8E%E4%B9%88%E6%B1%82%21sets%3Aposition%2F1..7%2F%3Ax%2Cf%3Bsociety%2F1..15%2F%3Ar%2CY%3Bendsetsdata%3Ar%3D2+14+3+6+9+4+8+12+10+11+6+14+9+3+6%3Bf%3D9+6.5+20+14.5+19+13+10.5%3Benddatamax%3D%40sum%28society%28i%29%3Ay%28i%29%29%3BY%281%29%3D%40if%28x%281%29%23eq%231%2C0.7%2Ar%281%29%2C0%29%3BY%282%29%3D%40if%28%28x%281%29%2Bx%282%29%29%23le%230%2C0%2C%40if%28%28x%281%29%2Bx%28)
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