subplots_ex1.py

import numpy as np
import matplotlib.pyplot as plt

# Input x, output y
x = np.linspace(0, 2*np.pi, 400)
y = np.sin(x**2)

# Creates fig and ax from subplots().
# But only create a single plot 
fig, ax = plt.subplots()
ax.plot(x, y)
ax.set_title('Subplot ex1: Only one plot')
# Save figure
fig.savefig('Subplot_ex1.png')