Approximations of the sawtooth wave by sum of harmonics
0.6
0.4
0.2
−0.2
−0.4
−0.6
−0.8
0
Amplitude
0 0.5 1 1.5 2 2.5 3 3.5 4
time (in sec)
COLOR FIGURE 4.36
Plots of part d of Example 4.2.
Harmonic frequencies of f(t)
first
second
third
fourth
fifth
0.8
0.6
0.2
−0.2
−0.4
−0.6
−0.8
0
0.4
Amplitude
− 2 −1.5 − 1 −0.5 0 0.5 1 1.5 2
time (in sec)
COLOR FIGURE 4.41
Plots of part b of Example 4.4.
CRC_47760_COLPLA.indd 6CRC_47760_COLPLA.indd 6 7/18/2008 5:34:24 PM7/18/2008 5:34:24 PM