MATLAB variables. Types. Declaration. Operations.

Select all variable types that exist in MATLAB.

• int10

• single

• logical

• array

• script

What command will create the row vector a = ( 4 15 23 81 ) ?

• a = [4 15 23 81]

• a = [ 4, 15, 23, 81]

• a = [ 4; 15; 23; 81]

• a = [ 4,15 23, 81]

What will be the last element of vec variable if the last one was generated using following MATLAB command:

>> vec = 1:3:110;

?

• MATLAB will display an compilation error

• 112

• 110

• 109

How many elements will have the array term generated by the MATLAB command:

>> linspace ( 3 , 3.1 );

?

• 100

• 1

• 2

• 15

What MATLAB commands will generate a similar result?

• a = ones

• a = zeros

• a = eye

• a = eye(3)

Select the MATLAB command that will generate equivalent results.

• b = [3, 2, 1]'

• b = [3; 2; 1]

• b = zeros(3, 2, 1)

• b = pascal (3, 2, 1)

A matrix was declared as in the left-side image. Which command assigns to scalar s value 10?

• s = matrice(3,2)

• s = matrice(end,end)

• s = matrice(2,3)

• s = matrice(1,3)

A matrix was declared as in the left-side image.

Select the right values for x components, if x was generated by the following MATLAB command

>> x = size(test);

• x (1) = 3

  x (2) = 7

• x (1) = 5

  x (2) = 15

• x (1) = 7

  x (2) = 3

• x (1) = 15

  x (2) = 5

Suppose that matrix A and vector b are saved in MATLAB Workspace with the values represented in the left-side picture. Which result will be displayed by the following command rezultat = A*b; ?

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For two matrices A and B defined as in the left-side picture, what will be the result of command A./B?

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