import matplotlib.pyplot as plt
from math import sin, cos

x = [i/100 for i in range(1000)]

s = [sin(i) for i in x]

c = [cos(i) for i in x]

plt.plot(x, s, 'go-', label='sin')

plt.plot(x, c, 'bx-', label='cos')

plt.legend()

plt.xlim(0,6)

plt.show()