how can i give a non-linear constraint for genetic algorithm (GA) in matlab toolbox (GATool) ....my constraint is x*y*z=82368, where x,y,z are the variables.........please help me

I was carrying out a genetic algorithm optimization problem, which is a 3 variable, 1 constraint problem....but i am not able to give the non-linear constraint (x*y*z=82368) in the GATool box of matlab.....can anyone help me out........ what is the format of giving such a constraint...... thank you

Answer 1

[Matt J]

x = ga(fitnessfcn,nvars,A,b,Aeq,beq,LB,UB,  @(x) deal([],prod(x)-82368)  )

[Rajesh]

thank you sir..... can you please explain what it means, i means "@(x) deal([],prod(x)-82368)".....how does matlab interprets it...... thank you

[Matt J]

For example,

>> nonlcon = @(x) deal([],prod(x)-82368);

>> [c,ceq]=nonlcon([1,2,3])

c =

       []

ceq =

        -82362

Answer 2

[Alan Weiss]

To learn about writing nonlinear constraints, consult the documentation.

Alan Weiss

MATLAB mathematical toolbox documentation

[Rajesh]

thank you sir