Originally posted by: huguowei

I am using C++ and CPLEX 12.1, under MS VS2008.Runtime error:IloAlgorithm 00D09EA0 cannot change extractables.

I guess the error due to my code as follow:
{
IloBoolVarArray zi(env);
IloExprArray Tij(env);
k=0;
for(int i=0;i<GenNum;i++){
Tij0+k +=(-gen[i].INS+IloAbs(gen[i].INS))/2;//gen[i].INS is eternal constant
for(int j=1;j<T;j++){
Tijk+j+=(Tijk+j-1*(2-IloPower(2,zik+j-1))+2-IloPower(2,zik+j-1));}
k=(1+i)*T;}

Tijk+j+=(Tijk+j-1*(2-IloPower(2,zik+j-1))+2-IloPower(2,zik+j-1));
for(int i=0;i<GenNum;i++){
for(int j=0;j<T;j++){
IloRangeArray(env,gen[i].MDT,Tij,100);}}}
I am using some function like IloAbs and IloPower,and it leads to the error?
many thanks!
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: RWunderling

huguowei,

1. you need to get used to properly quote code as Daniel already instructed you, i.e. use

{ code }
your code here
{ code }

but without spaces around "code". Otherwise your code is rendered incomprehensibly by WIKI.

2. Guessing at what you are trying to to model, it seems that you are trying to add a highly
non-linear and non-quadratic power constraint. This is indeed unsupported by IloCplex. Please
read the details of what is supported in the docs.

Roland
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: huguowei

thank you to reply me . cplex can solve LP,QP,QCP,MIP,but a problem which objective function and constraints are both expanded to include quadratic terms,
can be solved by cplex?
many thanks!
#CPLEXOptimizers
#DecisionOptimization