sets:
che/1..3/:WET,VOL;
wu/1..4/:w,v,p;
Link(wu,che):x;
endsets
data:
WET=8000,8000,8000;VOL=9.084,9.084,9.084;
w=6500,5000,4000,3000;
v=0.0012,0.0015,0.03,0.0008;
p=1.7,2.25,4.5,1.12;
enddata
max=@sum(wu(i):p(i)*@sum(che(j):x(i,j)));
@for(wu(i):@sum(che(j):x(i,j))