Figure 3.35: Signal-flow diagram for the solution to a second-order linear differential equation.
Consider the problem of designing a signal-processing system to study the homogeneous second-order linear differential equation
The output stream, modeling
, is generated by a network that contains a loop. This is because the value of
depends upon the values of
and both of these are determined by integrating
. The diagram we would like to encode is shown in figure 3.35. Write a procedure
that takes as arguments the constants
and the initial values
and generates the stream of successive values of
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