5.8.1 Window functionsA range of commonlyused window functions may automatically be applied to data as it is read into the fft and ifft commands; these are listed together with their algebraic forms in TableĀ 5.1 and shown in FigureĀ 5.1. In each case, the window functions are given for sample number , which ranges between and . The window functions may be invoked using the following syntax: fft [...] <out>() of <in>() window <window_name> Where multidimensional FFTs are performed, window functions are applied to each dimension in turn. Other arbitrary window functions may be implemented by premultiplying data before entry to the fft and ifft commands.
