[Solved] What is wrong with this code snippet?import numpy as np from scipy.sparse.linalg import eigsh D = np.array([[1, 0], [0, 2]]) vals, vecs = eigsh(D, k=2, which='LM') print(vals) | SciPy

SciPy - Sparse Linear Algebra

What is wrong with this code snippet?

import numpy as np
from scipy.sparse.linalg import eigsh

D = np.array([[1, 0], [0, 2]])
vals, vecs = eigsh(D, k=2, which='LM')
print(vals)

Aeigsh requires a symmetric matrix, but D is not symmetric

Bk cannot be equal to matrix size for eigsh

CNo error; code runs correctly

Dwhich='LM' is invalid for eigsh

Step-by-Step Solution

Solution:

Step 1: Check matrix symmetry
Matrix D is diagonal and symmetric.
Step 2: Validate parameters
k=2 equals matrix size, which is allowed. which='LM' (largest magnitude) is valid.
Final Answer:
No error; code runs correctly -> Option C
Quick Check:
Valid parameters and symmetric matrix [OK]

Quick Trick: eigsh accepts k equal to matrix size [OK]

Common Mistakes:

Master "Sparse Linear Algebra" in SciPy

9 interactive learning modes - each teaches the same concept differently

More SciPy Quizzes

What is wrong with this code snippet?