import numpy as np
import scipy as sp
import matplotlib.pyplot as plt

f_c = 1
f_m = f_c/4

omega_m = 2*np.pi*f_m
omega_c = 2*np.pi*f_c

T_c = f_c

t = np.arange(0,10,T_c/10)
m = np.cos(omega_m * t)

plt.plot(t, m)
plt.show()

D_p = np.pi
D_f = np.pi

S_p = np.cos(omega_c + D_p*m)
plt.plot(t,S_p)
plt.show()