SciPy - Integration with Scientific Ecosystem
What will this code print?
import numpy as np arr = np.arange(5) result = np.sum(arr * 2) print(result)
What will this code print?
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Create array and multiply by 2
arr = [0,1,2,3,4], arr * 2 = [0,2,4,6,8].Step 2: Sum all elements
Sum = 0+2+4+6+8 = 20.Final Answer:
20 -> Option CQuick Check:
Sum of doubled array = 20 [OK]
Quick Trick: np.sum sums all elements after vectorized ops [OK]
Common Mistakes:
- Summing before multiplying
- Confusing np.sum with np.prod
- Misunderstanding np.arange output
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