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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does zeros(3,3) produce?
💡 Hint: Think about what the function `zeros` does.
Question 2
Easy
What function would you use to create a square matrix of size 2 filled with ones?
💡 Hint: Remember the name of the function for ones and check how the size is defined.
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 function ones(3,2) return?
- A 3x2 matrix filled with ones
- A 2x3 matrix filled with zeros
- A 3x3 identity matrix
💡 Hint: Think about what the `ones` function creates.
Question 2
True or False: The function eye(m,n) returns an m-by-n matrix filled with random numbers.
- True
- False
💡 Hint: Recall what identity matrices are.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a 5x5 identity matrix and then create a 3x3 matrix filled with zeros. Combine them into a single matrix with the identity matrix on top of the zero matrix.
💡 Hint: Think about how to concatenate matrices both vertically.
Question 2
From the vector v = [10, 20, 30], create a diagonal matrix, and then replace the first diagonal element with 15. What is the new matrix?
💡 Hint: Use the `diag` function and understand how indexing works.
Challenge and get performance evaluation