# How to handle equality constraints in the mutation operation of evolutionary algorithms?

I am new in evolutionary algorithms field. I have a chromosome of 6 variables (real variable), where the sum of these variables is equal to 1.

I am looking for mutation formulas that can generate a new chromosome respecting the equality constraint: in my case, the sum of new chromosome should always equal to 1.

• I think there are some typos in this answer, if I understand correctly your suggestion. For example, what is $f(X)$? – nbro Apr 15 at 10:31