[Solved] What will be printed by this code?import numpy as np arr = np.array([[1, 2], [3, 4]]) r = arr.ravel() r[0] = 10 print(arr[0, 0]) | NumPy

NumPy - Array Manipulation

What will be printed by this code?

import numpy as np
arr = np.array([[1, 2], [3, 4]])
r = arr.ravel()
r[0] = 10
print(arr[0, 0])

A1

BError

C10

D0

Step-by-Step Solution

Solution:

Step 1: Understand ravel() returns a view if possible
The ravel() method returns a view of the array if possible, so modifying r[0] changes arr[0, 0].
Step 2: Check modified value
After setting r[0] = 10, arr[0, 0] becomes 10.
Final Answer:
10 -> Option C
Quick Check:
ravel() returns view, changes affect original [OK]

Quick Trick: ravel() changes reflect in original array if view [OK]

Common Mistakes:

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What will be printed by this code?