MATLAB: Making a loop with 3 variables

loopoptimize

Hello,
I'm new to matlab and need help making a code for obtaining an optimize value. Lets say I have y=a^2-8*b+C*2/ab for example and I have to obtain y<x where a=1:5, b=30:100 and c=20:30.
So I first use an initial value for a, b, and c, then if y<x is not met it will recalculate with a different value a,b,c until y<x is satisfied. Basically making a loop.
Is it possible to code this?
Thanks in advance

Best Answer

why loop??? use this beautiful method
a=1:5;
b=30:100;
c=20:30;
[a,b,c]=meshgrid(a,b,c);
y=a.^2+8*b+2.*c./a./b;
This will produce matrix with size(71,5,11)
you can get the minimum result in the next line
x=min(min(min(y)));