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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the result of A(1,:) if A is a 3x3 matrix?
💡 Hint: Think about how MATLAB accesses entire rows.
Question 2
Easy
If A(:,1)=[], what happens to the matrix?
💡 Hint: Consider what the empty vector does.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the colon operator do in MATLAB?
- Selects elements
- Sets values
- Loops
- None of the above
💡 Hint: Think about its role in indexing.
Question 2
True or False: The command A(:,2)=[] deletes the second column of matrix A.
- True
- False
💡 Hint: Recall what setting a column to an empty vector does.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a matrix A of size 5x5, use the colon operator to extract a matrix consisting of rows 3 to 5 and columns 1 to 3.
💡 Hint: Think about how you define the range for rows and columns.
Question 2
You have a matrix A that is 10x10. How would you delete both the second row and fourth column in one go?
💡 Hint: Consider the sequence of operations you have learned.
Challenge and get performance evaluation