$offlisting * * Equation counts * Total E G L N X C B * 6 1 0 5 0 0 0 0 * * Variable counts * x b i s1s s2s sc si * Total cont binary integer sos1 sos2 scont sint * 4 4 0 0 0 0 0 0 * FX 0 * * Nonzero counts * Total const NL DLL * 19 16 3 0 * * Solve m using NLP minimizing objvar; Variables x1,x2,x3,objvar; Positive Variables x2; Equations e1,e2,e3,e4,e5,e6; e1.. x1 + x2 - x3 =L= 0; e2.. - x1 + x2 - x3 =L= 0; e3.. 12*x1 + 5*x2 + 12*x3 =L= 22.8; e4.. 12*x1 + 12*x2 + 7*x3 =L= 17.1; e5.. - 6*x1 + x2 + x3 =L= 1.9; e6.. -(-sqr(x1) - sqr(x2) - sqr(x3) + 2*x3) + objvar =E= 0; Model m / all /; m.limrow=0; m.limcol=0; m.tolproj=0.0; $if NOT '%gams.u1%' == '' $include '%gams.u1%' $if not set NLP $set NLP NLP Solve m using %NLP% minimizing objvar;