540 Practical MATLAB® Applications for Engineers
− 3
− 2
− 1
0
Phase
1
2
0
0.002
0.004
Magnitude
0.006
0.008
0.01
− 2 − 1
− 1 −0.8 −0.6 −0.4 −0.2 0 0.2
angle[DFT[f(n)]] versus w
abs[DFT[f(n)]] versus w
0.4 0.6 0.8 1
012 3
frequency w × 104
× 104
FIGURE 5.53
Plot of DFT[f(n)] of Example 5.12.
− 1
− 1000 − 800
0.8
0.6
0.4
Magnitude
0.2
0
− 600 − 400 − (^2000)
angle[FT[f(t)]] versus w
abs[FT[f(t)]] versus w
200 400 600 800 1000
− 2
− 1
0
Phase
1
2
−0.8 −0.6 −0.4 −0.2 0
frequency w^ ×^104
0.2 0.4 0.6 0.8 1
FIGURE 5.54
Plot of FT[f(t)] of Example 5.12.