[Solved] Identify the error in this MATLAB code snippet:x = linspace(0,1,5);y = x.^3;result = trapz(y, x); — Ans: Arguments to trapz are reversed; should be trapz(x, y) | MATLAB

MATLAB - Numerical Methods

Identify the error in this MATLAB code snippet:

x = linspace(0,1,5);
y = x.^3;
result = trapz(y, x);

AUsing .^3 is incorrect for element-wise power

Blinspace should have 6 points instead of 5

CArguments to trapz are reversed; should be trapz(x, y)

Dtrapz cannot be used with vectors

Step-by-Step Solution

Solution:

Step 1: Check trapz argument order
trapz expects x values first, then y values. Here, arguments are reversed.
Step 2: Validate other parts
linspace with 5 points is valid; .^3 is correct for element-wise cube; trapz works with vectors.
Final Answer:
Arguments to trapz are reversed; should be trapz(x, y) -> Option C
Quick Check:
trapz(x,y) correct argument order [OK]

Quick Trick: Remember trapz(x, y), x first then y [OK]

Common Mistakes:

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