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What does the MATLAB function regexp return when used with the 'match' option?

easy📝 Conceptual Q1 of 15
MATLAB - String Handling
What does the MATLAB function regexp return when used with the 'match' option?
AThe original string unchanged
BThe number of matches found
CA logical array indicating match positions
DA cell array of substrings that match the pattern
Step-by-Step Solution
Solution:
  1. Step 1: Understand the 'match' option in regexp

    The 'match' option tells regexp to return the actual substrings that match the pattern.
  2. Step 2: Identify the output type

    When 'match' is used, regexp returns a cell array containing all matched substrings.
  3. Final Answer:

    A cell array of substrings that match the pattern -> Option D
  4. Quick Check:

    regexp with 'match' = cell array of matches [OK]
Quick Trick: Use 'match' to get matched substrings as cells [OK]
Common Mistakes:
  • Thinking it returns count instead of matches
  • Expecting a numeric array
  • Confusing with 'start' option

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