Topic 6

Question 1

import matplotlib package

Answer 1

import matplotlib.pylot as plt

Question 2

matplot lib interfaces

Answer 2

1. Simple plotting like in MATLAB and all the commands
   are applied to the current figure and axes.
2. Plotting functions that apply directly to the Figure and
   Axes objects.

Question 3

subplot function for matplotlib

Answer 3

fig, axes = plt.subplots(<number>,</number>

<number>)
</number>

Question 4

Initialise the figure

Answer 4

fig, (ax1, ax2) = plt.subplots(nrows=1, ncols=2,
figsize=(7, 3))

Question 5

Create the data to plot for cosine and sine graph

Answer 5

xvalues = np.linspace(0, 2 * np.pi, 100)
cosine_values = np.cos(xvalues)
sine_values = np.sin(xvalues)

Question 6

Plot the cosine graph on the left and sine graph on the right

Answer 6

ax1.plot(xvalues, cosine_values, label=”Cosine”)
ax2.plot(xvalues, sine_values, label=“Sine”)

Question 7

Label axis

Answer 7

ax1.set_xlabel(r”$x$”)
ax1.set_ylabel(r”$\cos(x)$”)
ax2.set_xlabel(r”$x$”)
ax2.set_ylabel(r”$\sin(x)$”)

Question 7

remove the overlap between the plots

Answer 7

plt.subplots_adjust(wspace=0.4)

Question 7

fontsize:

Answer 7

fontsize=

Question 8

set axis limits

Answer 8

ax1.set_xlim([0, 2 * np.pi])
ax1.set_ylim([-1, 1])
ax2.set_xlim([0, 2 * np.pi])
ax2.set_ylim([-1, 1])

Question 9

add a legend

Answer 9

ax1.legend()
ax2.legend()