PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

Time Domain Representation of Continuous and Discrete Signals 35

Sawtooth(t,.50) versus t 2*Sawtooth(t,.25) versus t

1.5

0.5

0

0510

−0.5

− 1

−1.5

1

f1(t) f2(t)

f3(t)

3*Sawtooth(t,.33) versus t 4*Sawtooth(t,.75) versus t

2

1

0

0 510

− 1

− 2

5

− 5

0

0510

f4(t)

t (time)

4

2

− 2

− 4

0

0 510

t (time)

FIGURE 1.31

Plots of the function sawtooth of R.1.108.

FIGURE 1.32

Plot of the function sinc of R.1.110.

sinc(x) versus x for −5<x<5

1

0.8

0.6

0.4

0.2

0

−0.2

−0.4

− 5 − (^4) − 3 − 2 − 1 0 1 2 3 4 5
x
Amplitude [Sinc(x)]