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Which of the following is the correct syntax to solve a sparse linear system Ax = b using spsolve?

easy📝 Syntax Q3 of 15
SciPy - Sparse Linear Algebra
Which of the following is the correct syntax to solve a sparse linear system Ax = b using spsolve?
Ax = spsolve(A, b)
Bx = spsolve(b, A)
Cx = spsolve(A * b)
Dx = spsolve(A, b, axis=0)
Step-by-Step Solution
Solution:
  1. Step 1: Recall spsolve function signature

    The correct call is spsolve(A, b) where A is the sparse matrix and b is the right-hand side vector.
  2. Step 2: Check other options for errors

    x = spsolve(b, A) reverses arguments, C misses second argument, D uses invalid keyword axis.
  3. Final Answer:

    x = spsolve(A, b) -> Option A
  4. Quick Check:

    Correct syntax = spsolve(A, b) [OK]
Quick Trick: Call spsolve with matrix first, then vector: spsolve(A, b) [OK]
Common Mistakes:
  • Swapping arguments order
  • Passing only one argument
  • Using unsupported keyword arguments

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