Matlab2

Which function creates a matrix filled with zeros?

• zeros()

• ones()

• fill()

• null()

Which command creates a row vector from 1 to 10 with step size 2?

• 1:2:10

• linspace(1,10,2)

• range(1,10,2)

• step(1,2,10)

What is the result of zeros(2,3)?

• A 2x3 matrix of zeros

• A 3x2 matrix of zeros

• A 2x2 identity matrix

• Error

How can you concatenate two matrices A and B horizontally?

• [A + B]

• [A B]

• horzcat(A; B)

• vertcat(A B)

Which indexing method allows access to an entire row?

• A(:,2)

• A(2,:)

• A(2)

• A(:,:)

What does rand(2,2) generate?

• A 2x2 matrix of ones

• A 2x2 matrix of random integers

• A 2x2 matrix of random numbers between 0 and 1

• An empty matrix

Which function is used to transpose a matrix?

• flip()

• inv()

• '

• rot90()

What will A(end,:) return?

• The last column

• The first column

• The last row

• The entire matrix

Which function sorts elements of a matrix in ascending order?

• arrange()

• flip()

• sort()

• order()

What is the output of NaN + 5 in MATLAB?

• 5

• 0

• NaN

• Error