$ondollar title Frannie's Firewood (LP) Example 6.1 of Rardin (1998)

$offsymxref offsymlist offuelxref offuellist offupper
option limrow = 0, limcol = 0;

free variable sales "total sales income";

positive variables
x1   "half-chords to customer 1",
x2   "full chords to customer 2";

equations
obj   "max total sales income",
avail "only 3 chords available";

obj..
sales =e= 90*x1 + 150*x2;

avail..
0.5*x1 + x2 =l= 3;

model franfire /all/;

solve franfire using lp maximizing sales;