Applies a flat top window to the input sequence X.

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X is the first input sequence. |
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Flattop{X} is the input signal with the flat top window applied. |
If y represents the output sequence Flattop{X}, the Flat Top Window VI obtains the elements of y from
yi = xi[0.21557895 – 0.41663158cos(w) + 0.277263158cos(2w) – 0.083578947cos(3w) + 0.006947368cos(4w)]
for i = 0, 1, 2, …, n – 1
,
where n is the number of elements in X.