2. Sinusoids Demos

./phasors/overview.gif Rotating Phasor Click for Audio p21 - Shows how the real part of the rotating phasors traces out a sinusoid versus time.
./sine_dri/overview.gif Sine Drill Click for Audio p12 - Tests the users ability to determine basic parameters of a sinusoid.
./z_drill/overview.gif ZDrill Click for Audio p26 - Tests users ability to calculate the result of simple operations on complex numbers. The program emphasizes the vectorial view of a complex number. The following six operations are supported:
  • Add
  • Subtract
  • Multiply
  • Divide
  • Inverse
  • Conjugate

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McClellan, Schafer, and Yoder, Signal Processing First, ISBN 0-13-065562-7.
Prentice Hall, Upper Saddle River, NJ 07458. © 2012 Pearson Education, Inc.