Crowdly

What is the value of B after the following Python commands?

A = np.array([[1,2,3],[4,5,6],[7,8,9]])
B = np.hstack((A[:,(0,1)], A[:, 1:2]))

[[1, 2, 2],

[4, 5, 5],

[[1, 2, 3],

[1, 2, 3]]

[[1, 1, 2],

[7, 7, 8]]

[[1, 2, 1, 2],

[4, 5, 4, 5],

[7, 8, 7, 8]]

[2, 2]

Consider D to be a 20 by 20 array. Which of the following will extract the position of the maximum values of each row of D?

np.argmax(D)

np.argmax(D, axis=0)

np.argmax(D, axis=1)

np.max(D, axis=0)

Which of the following skills remains essential for engineers, even when using GenAI tools?

Writing complex programs without testing them

Being able to debug and adapt code to suit a specific problem

Knowing the entire Python language specification

Memorising common Stack Overflow answers

For the given code, which of the values of "a" will not print?


  a = 9 
  while a <= 20: 
		    a += 1 
        if a == 15: 
    	        continue 
        print("The value of a is:",a)

For the given code, which of the values of "a" will not print?


  a = 10 
  while a < 30: 
		    print("The value of a is: ",a) 
        a += 1 
        if a > 20: 
    	        break

Which of the following scenarios will cause a while loop to end?

When the counter in the while loop reaches infinity

When the while condition becomes false

When the counter in the for loop reaches zero

When the while condition becomes true

What is the value of j after three iterations of the following loop?


  j = np.linspace(0,20,5); 
  for m in range(len(j)): 
  	    j[m] = j[m]*2;

[0 10 20 15 20]

[0 10 20]

[0 10 20 30 20]

Choose the correct statement about open methods from the options below.

All open methods will work only if you have an analytic expression of f'(x)

All open methods require more than one x value as initial guesses

All open methods are based on considering the gradient at a point x

All open methods require a bracket to start off