What does the MATLAB expression x = A\b do?

easy📝 Conceptual Q11 of 15

MATLAB - Linear Algebra

What does the MATLAB expression x = A\b do?

ASolves the linear system Ax = b for x

BCalculates the inverse of matrix A

CMultiplies matrix A by vector b

DTransposes matrix A and multiplies by b

Step-by-Step Solution

Solution:

Step 1: Understand the expression A\b
The operator \ in MATLAB is used to solve linear systems of the form Ax = b.
Step 2: Identify the purpose of A\b
It finds the vector x that satisfies the equation Ax = b without explicitly calculating the inverse of A.
Final Answer:
Solves the linear system Ax = b for x -> Option A
Quick Check:
A\b solves Ax = b [OK]

Quick Trick: Remember: A\b solves Ax = b directly [OK]

Common Mistakes:

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