Introduction to Variables in MATLAB
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Questions and Answers

What is the purpose of a variable in MATLAB?

  • To display output to the user
  • To perform mathematical operations on data
  • To store data in memory and be able to recall it (correct)
  • To create new functions

What does the operator '=' signify in MATLAB?

  • Subtraction operation
  • Comparison of two values
  • Addition operation
  • Assignment of a value to a variable (correct)

What is the correct way to assign a value to a variable in MATLAB?

  • $x == 10$
  • $x*2 = 20$
  • $x = 20/2$
  • $x = 20$ (correct)

What does the 'whos' command do in MATLAB?

<p>Inspects the workspace and displays information about variables (B)</p> Signup and view all the answers

Which set does a value belong to if its size is specified as '1x1'?

<p>Numbers (A)</p> Signup and view all the answers

In MATLAB, what does the expression $1:2:10$ represent?

<p>The sequence 1, 3, 5, 7, 9, 10 (B)</p> Signup and view all the answers

What is the result of the MATLAB expression $4:0.5:6$?

<p>4 and 4.5 (C)</p> Signup and view all the answers

If a matrix in MATLAB has inconsistent row dimensions, what error message would be produced?

<p>'Dimensions of arrays being concatenated are not consistent.' (D)</p> Signup and view all the answers

What does the expression $[1;2;3]$ represent in MATLAB?

<p>A column vector with elements 1, 2, and 3 (B)</p> Signup and view all the answers

Which notation is used to define an arithmetic sequence in MATLAB?

<p>'initial element : increment : last element' (A)</p> Signup and view all the answers

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