Digital Signal Processing Reference
In-Depth Information
14000
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r
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s
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Dot-Com Bubble
8000
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1929's Black Friday
2000
1907
1917
1927
1937
1947
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1997
2007
Figure 2.3
The Dow-Jones industrial index.
1.00
0.50
0
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−
0.50
−
1.00
Figure 2.4
An example of random signal.
