Practice Matrix Generation (2.5) - Tutorial lessons - Part B

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9 questions

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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
How do you create a column vector with elements 1, 2, 3?
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Remember to use semicolons.
Question 2.
What is the command to create a matrix with values 1 to 9?
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Use semicolons for rows.
3Question 3.
Which command is used to create a 3x3 matrix of zeros?
- zeros(3,3)
- ones(3,3)
- eye(3)
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Focus on the function name that symbolizes emptiness.
4Question 4.
True or False: Indexing in MATLAB starts from 0.
- True
- False
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Think of how you would count elements in MATLAB.
Question 5.
Given a matrix C = [1 2; 3 4; 5 6; 7 8], write the commands necessary to extract the second and third rows and the first column into a new matrix.
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Recall how to use indexing with ranges.
Question 6.
Create a 4x4 matrix filled with ones, but replace the diagonal to be filled with zeros. Describe the commands.
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Think about how to specifically target diagonal elements in a matrix.

5 more questions in this section. Enroll free to practise them all.