PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

Alternating Current Analysis 279

The average value of f1(t) is =

-6.8464e-016

The rms value of f1(t) is =

3.5355

The average value of f2(t) is =

0.5000

The rms value of f2(t) is =

0.5774

The average value of f3(t) is =

0.5000

The rms value of f1(t) is =

0.7071

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Observe that the numerical results fully agree with the symbolic results.

Example 3.9

Create the script fi les circ_Fig_359 and circ_Fig_360 that return for the circuits shown in

Figures 3.59 and 3.60, the following plots:

1. |Z(ω)| v e r s u s ω
   2. ∠Z(ω) versus ω

− 3 − 2 − 1 0123

− 5

0

5

Plots of f1(t), f2(t), & f3(t)

f1 (t)

− 1 −0.5^0 0.5^1 1.5^2 2.5^3

−0.5

0

0. 5

1

1.5

f2 (t)

− 1 −0.5^0 0.5^1 1.5^2 2.5^3

−0.5

0

0.5

1

1.5

f3 (t)

time

(a)

(b)

(c)

FIGURE 3.58

Plots of the periodic functions of Example 3.8 (a, b, c).