In [ ]:

    

import numpy as np
import matplotlib.pyplot as plt

N = 1000
twopi = 2 * np.pi
x = np.arange(0, 10, 0.001)
wave = np.zeros_like(x)


for n in np.arange(1, N, 2):
    wave += np.sin(n * twopi * x) / (n * twopi)

fig, ax = plt.subplots()
_ = ax.plot(x, wave)