Figure 17-1

Figure 17-2

ease

linear

ease-in

ease-out

ease-in-out

steps(4,end)

step-start

step-end

Figure 17-3

Figure 17-4

Figure 17-5

BUY

Figure 17-7

Figure 17-8

Figure 17-9

Figure 17-10

Figure 17-11

Figure 17-12

Figure 17-13

Figure 17-15

Figure 17-16

Figure 17-18

Magic!