Introduction to Programming with MATLAB Quiz Answers

Get Introduction to Programming with MATLAB Quiz Answers

Introduction to Programming with MATLAB Quiz Answers

Quiz : Lesson 2 Wrap-up

Q1. The value of a after this command: a = [0; 0; 1]’ * [1 2 3; 4 5 6; 7 8 9]

  • [7, 8 , 9]
  • [3 ; 6 ; 9]
  • [3 , 6 , 9]
  • [7 ; 8; 9]

Q2. What will be the value of s after this command: A = [1:4; -2:2:5; 3 1 0 -1]; s = A(end-1,end-1);

  • 0
  • -1
  • 2
  • We get an error message.

Q3. Which of the following is a valid variable name?

  • 5x2x3x
  • MATLAB_Rulez!
  • I_Hate_This_Quiz_So_Much
  • All of the options above are invalid.

Q4. After this command: v = 111:-11:1; how many elements will v have?

  • 1
  • 0
  • 11
  • 10

Q5. In MATLAB, operators work on:

  • operands
  • associations
  • a tight schedule
  • arguments

Q6. The variable t after these commands v = 1:3:33; t = v(end) will be:

  • 33
  • 32
  • 31
  • None of the above.

Q7. The variable t after these commands t = (16:-4:1) ‘ .^ 2 will be

  • a 4-element vector
  • a 4×4 matrix
  • a scalar
  • None of the above. MATLAB will print an error message.

Q8. The value of p after this command: A = [1:4; 5:8; 9:12]; p = size(A);

  • will be 12
  • will be a 3-by-4 matrix
  • will be a 2-element vector
  • 4

Q9. Matrix multiplication works if its two operands

  • are vectors; specifically, the first one is a column vector and the second one is a row vector of any length.
  • are scalars.
  • are square matrices of the same size.
  • The first and second options are correct.
  • The second and third options are correct.
  • All of the options are correct.

Q10. Array multiplication works if the two operands

  • are vectors.
  • have the same inner dimensions.
  • have the same outer dimension.
  • are square matrices of the same size.

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