In this example, we create a nonlinear optimization model to design the case for a computer.

MODEL:

! Design a box at minimum cost that meets

area, volume, marketing and aesthetic requirements;

[COST] min = 2*( .05*(d*w + d*h) +.1*w*h);

[SURFACE]  2*(h*d + h*w + d*w) >= 888;

[VOLUME]   h*d*w >= 1512;

! These two enforce aesthetics;

[NOTNARRO] h/w <= .718;

[NOTHIGH]  h/w >= .518;

! Marketing requires a small footprint;

[FOOTPRNT] d*w <= 252;

END

Model: BOX