27 1 2 x 2 July 8, 2019 16 32 64 128 27 1 2 x 20 frame 27 1 2 x 3 1 2 1 27 2 x 9 2x 2 2 x * 27 1 x ) 24 1 4 x 2 5 )=- 27 20 16 1 2 x 27 2 3 2cosx 1 √ 27 6x x 2 0 27 1 2 x 19 1 2 frame 27 1 2 x 53 1 2 window 27 1 2 x 37 1 2 window 27 1 2 x 57 1 2 window 27 1 2 x 61 1 2 window 27 1 2 x 47 1 2 window 27 1 2 x 39 1 2 frame 27 1 2 x 27 1 4