Re: [Help-glpk] Help needed

[Andrew Makhorin]

> when I run the code the following message is shown:
> 
>  
> 
> alternate.mod:31: multiplication of linear forms not allowed
> 
> Context: ...C * TempIN_Meas [ j ] - YAC [ j ] - 5 * LambAC * YAC [ j ]
> +
> 
> MathProg model processing error
> 
>  
> 
> Does anybody have an idea about what does it mean this error?
> 

This error means that you attempt multiplying linear forms (in your case
these linear forms are variables LambAC and YAC[j]) that would lead to a
non-linear constraint and therefore is not allowed in linear models.