MATRICES

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Across
  1. 5. square matrix that has non-zero elements in its diagonal part running from the upper left to the lower right or vice versa.
  2. 6. A matrix whose all entries are zero
  3. 7. A square matrix A = [aij] is said to be__________ if the transpose of A is equal to A, that is, [aij] = [aji] for all possible values of i and j.
Down
  1. 1. matrix A matrix that has an equal number of rows and columns.
  2. 2. A square matrix that has all its principal diagonal elements as 1’s and all non-diagonal elements as zeros.
  3. 3. array of elements in the matrix is called rows
  4. 4. A matrix is a function that consists of an ordered rectangular array of numbers.