(a) (b)

The tree expressions of two RPN chromosomes shown in Figure 8.13. (a) For

panel RPN chromosome of Figure 8.13. (b) For the lower panel RPN

me of Figure 8.13.

(a) (b)

The tree expressions of two RPN chromosomes shown in Figure 8.13. Two

cate the subunits which were randomly selected for the crossover operation.

(a) (b)

Dual-chromosome crossover excluding branch nodes for trees shown in Figure

oxes in the dark background are the swapped variables.

e 8.16 shows two resulting trees using the dual-chromosome

r operator with the branch nodes unchanged from Figure 8.15.