Question

Lingo中进行编程总是会出现错误，下面的公式总是显示A syntax error has occurred

MAX Z=0.89X1+1.1X2+1.8X3-0.45(Y1.1+Y2.1+Y3.1)-0.55(Y1.2+Y2.2+Y3.2)
-0.7(Y1.3+Y2.3+Y3.3)-0.5(Y1.4+Y2.4+Y3.
sum(Y1.1+Y2.1+Y3.1)<=2000,sum(Y1.2+Y2.2+Y3.2)<=4000,
sum(Y1.3+Y2.3+Y3.3)<=5000,sum(Y1.4+Y2.4+Y3.4)<=3000;
Y1.3<=0.2X1,Y1.4>=0.4X1,Y1.2<=0.25X1;
Y2.3《=0.35X2,Y2.1>=0.4X2;
Y3.3>=0.3X3,Y3.3<=0.5X3,Y3.1>=0.3X3

Answer 1

MAX=0.89*X1+1.1*X2+1.8*X3-0.45*(Y11+Y21+Y31)-0.55*(Y12+Y22+Y32)-0.7*(Y13+Y23+Y33)-0.5*(Y14+Y24+Y34);

Y11+Y21+Y31<=2000;

Y12+Y22+Y32<=4000;

Y13+Y23+Y33<=5000;

Y14+Y24+Y34<=3000;

Y13<=0.2*X1;

Y14>=0.4*X1;

Y12<=0.25*X1;

Y23<=0.35*X2;

Y21>=0.4*X2;

Y33>=0.3*X3;

Y33<=0.5*X3;

Y31>=0.3*X3;

Answer 2

下向量可以在平面（或空间）平行移动而不改