Hi dear friends

I am looking for a problem-solving in the Galapagos. But I will not succeed.

As you can see in the figure, for example, I want to find the values of X,Y,Z,U so that the answer to the equation (R) was 552. How can I do this? Of course, I also used the *threshold* option, but I realized that this option has another function.

Can anyone explain me? Thanks

gala.gh (8.9 KB)

you are amazing @Joseph_Oster thank you so much.

just a question. I just can not understand the function of the deduction and then the absolute. Can you give me a brief explanation !! Thanks again

I changed the Galapagos ‘Fitness’ to ‘Minimize’ so the subtraction and absolute value result in the optimal solution being near zero. The negative inputs *(two sliders)* complicate matters since negative results are less than zero. I won’t guarantee it’s correct, I just stopped when it looked close.

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In principle, this equation is considered zero. Of course, this works right for me. Anyway, thank you for this valuable guide.