Friday, October 6, 2017

signal analysis - Why are the basis functions for DFT so?


When you get a DFT of a signal, you use the basis functions as:


ej2πkn/N


Why is it so? Why don't we use the conjugate, ej2πkn/N, or any other function?




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periodic trends - Comparing radii in lithium, beryllium, magnesium, aluminium and sodium ions

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