Dynamic NL expression in julia

Specific Domains Optimization (Mathematical)
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1

Hi, I am using Juniper to solve MNILP and with array of nonlinear expression i am getting invalid model error. is there a way to generate nonlinear expression names in a loop like

@variable(model,x)
zz=0.0
for i in 1:5
    for j in 1:5
        global zz=zz+1
        println(zz)
        xmm_$zz=@NLexpression(model,x+x*x+zz)
    end
end
println(model)
2

I am using Juniper to solve MNILP and with array of nonlinear expression i am getting invalid model error.

What code did you try and what is the error? Remember that it is easier to help if you can provide a reproducible example.

Do you want something like the following?

model = Model()
@variable(model, x)
@NLexpression(model, xmm[i=1:5, j=1:5], x + x * x + 5(i-1) + j)
xmm[2, 3]
3

Thanks for the reply. I am trying to build a NL exp.

           for t in 1:N
           WBMOM[t]=   @NLexpression(mod,Tnkcn[t,1] + Tnk[p,t]*Tnkcn[t,2]*zz*Tnk[p,t]
           	   +  Tnk[p,t]*Tnkcn[t,3]*(zz*Tnk[p,t])^2 +Tnk[p,t]*Tnkcn[t,4]*(zz*Tnk[p,t])^3 +
               Tnk[p,t]*Tnkcn[t,5]*(zz*Tnk[p,t])^4
           	   +Tnk[p,t]*Tnkcn[t,6]*(zz*Tnk[p,t])^5 +Tnk[p,t]*Tnkcn[t,7]*(zz*Tnk[p,t])^6	)
           end

This resolves this issue. But model is still invalid and trying to pinpoint the expression /constraints.