from __future__ import print_function, division

%matplotlib inline

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 20, 1000)  # 100 evenly-spaced values from 0 to 50
y = np.sin(x)

plt.plot(x, y);

plt.plot(x, y)
plt.xlim(5, 15)
plt.ylim(-1.2, 1.2);

plt.plot(x, y)

plt.xlabel('this is x!')
plt.ylabel('this is y!')
plt.title('My First Plot');

y = np.sin(2 * np.pi * x)
plt.plot(x, y)
plt.title(r'$\sin(2 \pi x)$')  # the `r` before the string indicates a "raw string";

plt.plot(x, y, '-r')  # solid red line ('r' comes from RGB color scheme)
plt.xlim(0, 10)
plt.ylim(-1.2, 1.2)

plt.xlabel('this is x!')
plt.ylabel('this is y!')
plt.title('My First Plot');

plt.plot?

x = np.linspace(0, 20, 1000)
y1 = np.sin(x)
y2 = np.cos(x)

plt.plot(x, y1, '-b', label='sine')
plt.plot(x, y2, '-r', label='cosine')
plt.legend(loc='upper right')
plt.ylim(-1.5, 2.0);

x1 = np.linspace(0, 10, 20)
y1 = np.sin(x1)

x2 = np.linspace(0, 10, 1000)
y2 = np.sin(x2)