You have a cell array C = {1, {2, 3}, 4}; and want to extract the number 3 inside the nested cell. Which indexing expression correctly extracts it?

hard📝 Application Q15 of 15

MATLAB - Cell Arrays and Structures

You have a cell array C = {1, {2, 3}, 4}; and want to extract the number 3 inside the nested cell. Which indexing expression correctly extracts it?

AC(2){2}

BC{2}{2}

CC{2}(2)

DC(2)(2)

Step-by-Step Solution

Solution:

Step 1: Understand the structure of C
C is a 1x3 cell array: first cell is 1, second cell is another cell array {2,3}, third cell is 4.
Step 2: Extract nested content step-by-step
Use C{2} to get the nested cell array {2,3}, then {2} to get the second element inside it, which is 3. So C{2}{2} extracts 3.
Final Answer:
C{2}{2} -> Option B
Quick Check:
Curly braces twice for nested content [OK]

Quick Trick: Use curly braces twice for nested cell content [OK]

Common Mistakes:

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