## Non linear constraints in Mixture DOE

Hello, I need to add constraints in my Mixture DOE that are not linear. Is it possible ? Typically I would add these constraints : X1/X2<0.5 and X1/X2

thanks a lot,
dp

Super User

Joined:

Jun 23, 2011

## Re: Non linear constraints in Mixture DOE

Can't tell what your second constraint is but the first can be rewritten as

X1 - 0.5*X2 < 0

which is linear. If you have a constraint that cannot be reframed as a linear constraint then you can use the Disallowed Combinations option, but that is not the preferred way to go.