Which of the following is the correct syntax to find the starting indices of substring 'cat' in string str = 'concatenate' using strfind?

easy📝 Syntax Q12 of 15

MATLAB - String Handling

Which of the following is the correct syntax to find the starting indices of substring 'cat' in string str = 'concatenate' using strfind?

Acontains(str, 'cat')

Bstrfind('cat', str)

Cstrfind(str, 'cat')

Dstrfind(str, cat)

Step-by-Step Solution

Solution:

Step 1: Recall strfind syntax
The first argument is the main string, second is the substring to find.
Step 2: Check each option
strfind(str, 'cat') correctly uses strfind(str, 'cat'). strfind('cat', str) reverses arguments. contains(str, 'cat') uses contains, not strfind. strfind(str, cat) misses quotes around 'cat'.
Final Answer:
strfind(str, 'cat') -> Option C
Quick Check:
strfind(mainString, substring) = strfind(str, 'cat') [OK]

Quick Trick: First argument main string, second substring in strfind [OK]

Common Mistakes:

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