function [TrainingInput, TrainingTarget, TestingInput, TestingTarget] = generate_sinc_set(TrainingDataNum, TestingDataNum)
temp = 20*rand(TrainingDataNum,1)-10;
TrainingInput = temp + 0.4*rand(TrainingDataNum,1)-0.2;
TrainingTarget = sinc(temp/pi);
clear temp;
TestingInput = 20*rand(TestingDataNum,1)-10;
TestingTarget = sinc(TestingInput/pi);