chem.gms:
Reference:
- Bracken, J, and McCormick, G P, Chapter 5. In Selected Applications of Nonlinear Programming. John Wiley and Sons, New York, 1968, pp. 48-49.
- Original source: GAMS Model of chem.gms from GAMS Model Library
Point:
<![CDATA[
* NLP written by GAMS Convert at 07/30/01 10:20:25
*
* Equation counts
* Total E G L N X
* 5 5 0 0 0 0
*
* Variable counts
* x b i s1s s2s sc si
* Total cont binary integer sos1 sos2 scont sint
* 12 12 0 0 0 0 0 0
* FX 0 0 0 0 0 0 0 0
*
* Nonzero counts
* Total const NL DLL
* 37 26 11 0
*
* Solve m using NLP minimizing objvar;
Variables x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,objvar;
Equations e1,e2,e3,e4,e5;
e1.. x1 + 2*x2 + 2*x3 + x6 + x10 =E= 2;
e2.. x4 + 2*x5 + x6 + x7 =E= 1;
e3.. x3 + x7 + x8 + 2*x9 + x10 =E= 1;
e4.. - (x1*(log(x1/x11) - 6.05576803624071) + x2*(log(x2/x11) -
17.1307680362407) + x3*(log(x3/x11) - 34.0207680362407) + x4*(log(x4/x11)
- 5.88076803624071) + x5*(log(x5/x11) - 24.6877680362407) + x6*(log(x6/
x11) - 14.9527680362407) + x7*(log(x7/x11) - 24.0667680362407) + x8*(log(
x8/x11) - 10.6747680362407) + x9*(log(x9/x11) - 26.6287680362407) + x10*(
log(x10/x11) - 22.1447680362407)) + objvar =E= 0;
e5.. - x1 - x2 - x3 - x4 - x5 - x6 - x7 - x8 - x9 - x10 + x11 =E= 0;
* set non default bounds
x1.lo = 0.001;
x2.lo = 0.001;
x3.lo = 0.001;
x4.lo = 0.001;
x5.lo = 0.001;
x6.lo = 0.001;
x7.lo = 0.001;
x8.lo = 0.001;
x9.lo = 0.001;
x10.lo = 0.001;
x11.lo = 0.01;
* set non default levels
* 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;
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