lewispol.gms
* NLP written by GAMS Convert at 10/06/06 11:33:50
*
* Equation counts
* Total E G L N X C
* 11 5 0 6 0 0 0
*
* Variable counts
* x b i s1s s2s sc si
* Total cont binary integer sos1 sos2 scont sint
* 8 8 0 0 0 0 0 0
* FX 0 0 0 0 0 0 0 0
*
* Nonzero counts
* Total const NL DLL
* 41 13 28 0
*
* Solve m using NLP minimizing objvar;
Variables x1,x2,x3,x4,x5,x6,x7,objvar;
Positive Variables x1;
Equations e1,e2,e3,e4,e5,e6,e7,e8,e9,e10,e11;
e1.. x2 + x3 + x4 + x5 + x6 + x7 =E= -1;
e2.. sqr(1 + x2 + x3 + x4 + x5 + x6 + x7) =E= 0;
e3.. sqr(6 + x3 + 2*x4 + 3*x5 + 4*x6 + 5*x7) =E= 0;
e4.. sqr(30 + 4*x4 + 9*x5 + 16*x6 + 25*x7) =E= 0;
e5.. 0.001*(POWER(x2,3) - x2) - x1 =L= 0;
e6.. 0.001*(POWER(x3,3) - x3) - x1 =L= 0;
e7.. 0.001*(POWER(x4,3) - x4) - x1 =L= 0;
e8.. 0.001*(POWER(x5,3) - x5) - x1 =L= 0;
e9.. 0.001*(POWER(x6,3) - x6) - x1 =L= 0;
e10.. 0.001*(POWER(x7,3) - x7) - x1 =L= 0;
e11.. - (sqr(x2) + sqr(x3) + sqr(x4) + sqr(x5) + sqr(x6) + sqr(x7) + sqr(x1))
+ objvar =E= 0;
* set non default bounds
x1.up = 1;
x2.lo = -1; x2.up = 1;
x3.lo = -1; x3.up = 1;
x4.lo = -1; x4.up = 1;
x5.lo = -1; x5.up = 1;
x6.lo = -1; x6.up = 1;
x7.lo = -1; x7.up = 1;
* set non default levels
x3.l = 1;
x4.l = 1;
x6.l = 1;
* set non default marginals
Model m / all /;
m.limrow=0; m.limcol=0;
$if NOT '%gams.u1%' == '' $include '%gams.u1%'
Solve m using NLP minimizing objvar;