1. Use a genetic algorithm to train a feed forward neural network with one hidden layer and unipolar discrete (sgn) activation function to classify characters: A,..., E.
2. The construction of a magic square using genetic algorithms.
A magic square of order n is an arrangement of the numbers from 1 to n2 in an n-by-n matrix, with each number occurring exactly once, so that each row, each column, and each main diagonal has the same sum.
Construct a magic square using a genetic algorithm. First, generate an initial population of magic squares with random values. The fitness of each individual square is calculated based on the "flatness", that is, the degree of deviation in the sums of the rows, columns, and diagonals.