[Solved] What is wrong with this MATLAB code?A = [1 2; 3 4]; b = [5; 6]; x = b\A; — Ans: Operands are reversed in the backslash operator | MATLAB

MATLAB - Linear Algebra

What is wrong with this MATLAB code?
A = [1 2; 3 4]; b = [5; 6]; x = b\A;

AVector b should be a row vector

BMatrix A is not invertible

CNo error, code runs fine

DOperands are reversed in the backslash operator

Step-by-Step Solution

Solution:

Step 1: Check operator usage
The backslash operator solves Ax = b as x = A\b. Here operands are reversed.
Step 2: Understand effect of reversing operands
Using b\A attempts to solve bx = A, which is invalid since b is a vector.
Final Answer:
Operands are reversed in the backslash operator -> Option D
Quick Check:
Correct usage = x = A\b [OK]

Quick Trick: Always write x = A\b, not b\A [OK]

Common Mistakes:

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