Page 308 - Excel for Scientists and Engineers: Numerical Methods
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CHAPTER 12 PARTIAL DIFFERENTIAL EOUATIONS 285
If you examine the values in the table, you will see that 20 time increments
constitute a complete cycle of vibration. This vibration time, 0.001758 seconds,
corresponds to a frequency of 569 sd, and agrees exactly with the value
calculated by the formula
f =zd5J ( 12-3 7)
1
The above procedure can be expanded to model vibrations in two space
dimensions.
(1 2-38)
