The study is supposed to study the planned strong. Because when there is a problem solved because education has somewhat limited. He works to make may be incomplete as it should.
The studied Study should be planned carefully. Even when a problem is solved Since the study is relatively limited operating time. As a result, the output signal may not be as perfect as it could be.
Making education. Should study the planned tightening. When a the problem is resolved. Because studies have to work quite limited. Make work out may be incomplete as it should be.