3/10/2011  DL

This test uses an ANN to multiply 2 integers from 0-3 together. A data sample
used to train the ANN is made with the make_train_file program. The ANN is actually
trained using the train_network program and the results written to the mult.net
file. This is then read by the test_network program to actually test it by running
the ANN.

The ANN has 2 inputs which take the values of the 2 integers (0-3). There are 2 hdden
layers with 8 and 10 neurons respectively. There are 10 ouputs representing the number
that is the result (0-9).

The actual value reported by the ANN for the multiplication is determined by which
of the 10 outputs was over 0.7 in value. The first output exceeding that threshold 
is considered to be the result (e.g. if the 5th output is the first whose value is
over 0.7, then the result is taken to be 4 (since the first output is taken to represent 0)).