$offlisting * * Equation counts * Total E G L N X C B * 2 2 0 0 0 0 0 0 * * Variable counts * x b i s1s s2s sc si * Total cont binary integer sos1 sos2 scont sint * 3 3 0 0 0 0 0 0 * FX 0 * * Nonzero counts * Total const NL DLL * 5 2 3 0 * * Solve m using NLP minimizing objvar; Variables x1,x2,objvar; Equations e1,e2; e1.. -(116*(10000000/((10 + x1/x2)*(-288000 + 1440*x1)))**0.86 + 47300*x1/(-200 + x1)) + objvar =E= -47300; e2.. -2100*log10(41.1522633744856/x2) + x1 =E= 0; * set non-default bounds x1.lo = 900; x2.lo = 10; 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;