source: class NetworkTest {
  
      @Test
      public void testThreeLayerNand() {
  
target:         NinjaMatrix w1 = new NinjaMatrix(1, 3, true, -15, 10, 10);
          NinjaMatrix w2 = new NinjaMatrix(1, 2, true, 5, -10);
          Network net = new Network(w1, w2);
          assertTrue(isOne(net.apply(0, 0)));
          assertTrue(isOne(net.apply(0, 1)));
          assertTrue(isOne(net.apply(1, 0)));
          assertTrue(isZero(net.apply(1, 1)));
      }
  
  }