Q.1
What is the output of the following code? A=[0 00 91 2 3]; nnz[A]
  • a) 4
  • b) 5
  • c) 3
  • d) Error
Q.2
What is the output of the following code? A=[1 20 0 0]; spones(A)
  • a) Returns a sparse matrix with the non-zeros replaced by normally distributed random numbers
  • b) Returns a sparse matrix with the zeros replaced by ones
  • c) Returns a sparse matrix with the non-zeros replaced by fractions
  • d) Returns a sparse matrix with the non-zeros replaced by random numbers
Q.3
The space located for the matrix generated from the spones command is _______
  • a) Same as a sparse matrix
  • b) Same as the original matrix
  • c) Same as an identity matrix
  • d) Double that of the sparse matrix
Q.4
What is the output of the following code? A=[1 24 57 8 9];if( nzmax(A)==nzmax(spones(A) ) disp(‘Yeah !’)
  • a) No output
  • b) Error
  • c) Yeah !
  • d) Output suppressed
Q.5
What is the output of the following code? nnz(spconvert([1 24 57 8 9])
  • a) 3
  • b) 2
  • c) 1
  • d) 6
Q.6
What is the output of the following code? nzmax(spconvert([1 24 57 8 9])
  • a) 2
  • b) 3
  • c) 1
  • d) Error
Q.7
A memory for sparse matrix is dedicated by the ______ command.
  • a) spalloc
  • b) sparsealloc
  • c) allocspar
  • d) no such command
Q.8
What is the output of the following command? spalloc(2,7)
  • a) A 2*3 sparse matrix
  • b) Memory is allocated for a 2*3 sparse matrix
  • c) A 3*2 sparse matrix
  • d) Error
Q.9
The default number of non-zero elements which can be put into the memory allocated by the spalloc command is > 1.
  • a) True
  • b) False
Q.10
The pattern generated by the spy command is a measure of the number of zeros in the input matrix.
  • a) True
  • b) False
0 h : 0 m : 1 s