NumPy - Creating Arrays
How can you create a 4x6 matrix with ones on the diagonal two below the main diagonal using np.eye()?
How can you create a 4x6 matrix with ones on the diagonal two below the main diagonal using np.eye()?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand matrix shape and diagonal offset
We want 4 rows and 6 columns, with diagonal shifted two below main diagonal (k=-2).Step 2: Match parameters
np.eye(4, 6, k=-2) matches rows=4, cols=6, diagonal offset -2.Final Answer:
np.eye(4, 6, k=-2) -> Option AQuick Check:
Rows=4, cols=6, k=-2 for below diagonal [OK]
Quick Trick: Rows first, columns second; negative k shifts diagonal down [OK]
Common Mistakes:
- Swapping rows and columns
- Using positive k for below diagonal
- Confusing matrix shape order
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