The curves shown below represent the time- and frequency-domain forms of a sum of exponentially decaying cosine terms, each with its own amplitude, frequency and rate of decay. Up to five terms can be individually switched on and off, and the parameters of the terms are controlled by the slider controls.

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   Amplitude  Frequency (kHz)  Lambda (1/s) 
Curve 1
6.0
-3.0
0.9
Curve 2
4.0
2.0
1.1
Curve 3
5.0
6.0
1.0
Curve 4
-4.0
-8.0
0.8