close,clf,clear
subplot(3,3,1)
happy_f1
axis('off')
subplot(3,3,2)
happy_f2
axis('off')
subplot(3,3,3)
happy_f3
axis('off')
subplot(3,3,4)
happy_f4
axis('off')
subplot(3,3,5)
happy_f5
axis('off'), axis('square')
subplot(3,3,6)
happy_f6
axis('off'), axis('square')
subplot(3,3,7)
happy_f7
axis('off'), axis('square')
subplot(3,3,8)
happy_f8
axis('off')
subplot(3,3,9)
happy_f9
axis('off'), axis('square')
