Exercise 3

Exercise 3 with matplotlib.

Python source code: plot_exercice_3.py

import numpy as np
import matplotlib.pyplot as plt

fig = plt.figure(figsize=(8, 5), dpi=80)
ax = plt.subplot(111)

X = np.linspace(-np.pi, np.pi, 256, endpoint=True)
C, S = np.cos(X), np.sin(X)

ax.plot(X, C, color="blue", linewidth=2.5, linestyle="-")
ax.plot(X, S, color="red", linewidth=2.5, linestyle="-")

ax.set_xlim(-4.0, 4.0)
ax.set_xticks(np.linspace(-4, 4, 9, endpoint=True))

ax.set_ylim(-1.0, 1.0)
ax.set_yticks(np.linspace(-1, 1, 5, endpoint=True))

plt.show()