Practice Introduction (2.4) - Tutorial lessons - Part B - IT Workshop (Sci Lab/MATLAB)

Practice: Introduction

Lesson 2.4Tutorial lessons - Part B

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10 questions

Flashcard drill
5 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Create a column vector in MATLAB using the numbers 2, 4, and 6.
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Remember to use semicolons to separate the elements.
Question 2.
What command would you use to create a 2x2 identity matrix?
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Think about the function that generates identity matrices.
3Question 3.
What command would you use to create a row vector with values from 1 to 5?
- `v = [1 2 3 4 5]`
- `v = [1; 2; 3; 4; 5]`
- `v = 1:5`
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Consider how vectors can be defined.
4Question 4.
True or False: The colon operator can be used to create a vector with values incremented by a specified step size.
- True
- False
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Think about how we create ranges in programming.
Question 5.
Suppose we have matrix D = [1 2; 3 4; 5 6; 7 8]. Write the MATLAB commands needed to extract the 2x2 square located in the bottom left corner.
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Focus on identifying the rows and columns to extract the desired sub-matrix.
Question 6.
Create a 5x5 matrix filled with random numbers and then extract the second row.
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Consider how to generate random numbers and extract a row using indexing.

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