Here is class 12 computer science Unit 8 [Type B] solutions for Sumita Arora back exercise assignment. Below includes both textual and video solutions wherever required. View all the answers in assignment for chapter 8 and for all chapters here.
Watch all tutorials for chapter 8.
Q1: Consider the code below:
Solution:
Q2: Execute the following codes and find out what happens? (Libraries have been imported already : plt is the alias name for matplotlib.pyplot)
Solution:
(a) No error (b) No error (c) The code will execute with no error but it will have an improper visualization due to the wrong value as parameter passed on.
Q3: Add titles for the X-axis, Y-axis and for the whole chart in above codes.
(a)
A = np.arange(2, 20, 2)
B = np.log(A)
plt.plot(A, B)
plt.title('log')
plt.xlabel("X axis")
plt.ylabel("Y axis")
plt.show()
(b)
A = np.arange(2, 20, 2)
B = np.log(A)
plt.bar(A, B)
plt.title('log')
plt.xlabel("X axis")
plt.ylabel("Y axis")
plt.show()
Q4: plt.plot(A,B) produces (A and B are the sequences same as created in question 2) chart as:
Solution:
import matplotlib.pyplot as plt import numpy as np # code for A vs B's every value*1.2 A = np.arange(2, 20, 2) B = np.log(A) B1 = B*1.2 plt.plot(A, B) plt.plot(A, B1) plt.show() # code for A vs B's every value*-1.2 A = np.arange(2, 20, 2) B = np.log(A) B1 = B*-1.2 plt.plot(A, B) plt.plot(A, B1) plt.show()
Q5: Why is following command producing error? (plt is the alias name of imported library matplotlib.pyplot and A is an ndarray created in question 2)
plt.pie(A, A+2, A+3, A+4)
Improper argument passed is the cause of error while plt.pie() requires different argument. ValueError: Invalid RGBA argument: 6
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