Demo 
Description 
Pages
in Text 
Signals
and Sounds 
Sinusoids and how they
look and sound 
8 
Periodicity
of Sums of Sinusoids 
Examine the sum of two sinusoids and
determine when their sum is periodic 
9 
Convolution
of DiscreteTime Signals 
Compute the convolution of pairs of
discretetime signals 
105 
Convolution
of ContinuousTime Signals 
Compute the convolution of pairs of
continuoustime signals 
119123 
Sums
of Sinusoids 
Examine the sum of sinusoids
in the time domain and in the frequency domain 
146149 
Convergence
of Fourier Series 
Examine the convergence
of Fourier series (square wave and triangular wave) 
157161 
Fourier
Transform of Exponential Signal 
Displays Fourier Transform
of exponential as the bandwidth varies 
169170 
Lowpass
Filtering of Sinusoids 
Examine the effect of a lowpass filter
on sinusoids 
206209 
Response
to Periodic Inputs 
Response of a lowpass filter to a pulse train as
the bandwidth is varied 
211215 
Sampling
and Aliasing 
Illustrates sampling in the time domain and frequency
domain for bandlimited and nonbandlimited signals 
236238 

Demo of PAM, QAM, FSK and OOK 
282289 

Examine the approximation of a DTFT by a DFT 
314316 
Pole
Position and Step Response 
Relationship between
pole positions and step response 
445452, 500 
Interactive
Root Locus 
Root locus with the
ability to move poles and zeros 
529535, 548552 
Pole
Positions and Impulse Response 
Relationship between
zdomain pole positions and impulse response 
581584 
Digital
Filtering of ContinuousTime Signals 
Examples of digital
filtering of continuoustime signals 
624630 
Mass
Spring Damper System 
Mass Spring Damper example
to show time response, frequency response, and resulting motion
of system (displayed through animation) 
32, 98,209, 404405, 456, 464, 475, 502 