import numpy as np
from scipy.fftpack import fft,ifft
import matplotlib.pyplot as plt
import seaborn

# np.fft.fft(np.exp(2j * np.pi * np.arange(8) / 8))
# t = np.arange(256)
# sp = np.fft.fft(np.sin(t))
# freq = np.fft.fftfreq(t.shape[-1])
# plt.plot(freq, sp.real, freq, sp.imag)
# plt.show()

