matrix puzzle

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1234567891011121314
Across
  1. 4. in which number of rows and columns are equal.
  2. 5. if square of A = I.
  3. 6. vertical lines
  4. 8. if every element above and below the leading diagonal of square matrix is zero.
  5. 9. in which all its diagonal elements are equal to be scalar , say k.
  6. 10. if each of its elements is zero.
  7. 13. if A = transpose of conjugate of A
  8. 14. if each of its diagonal elements is unity.
Down
  1. 1. in which number of rows and columns are not equal.
  2. 2. if all the elements except principal diagonal are zero.
  3. 3. if AA’ = I.
  4. 4. if A = A’.
  5. 7. interchange the rows and columns of given matrix A.
  6. 11. if AA* = I
  7. 12. it is a collection of numbers arranged in the form of rectangular array.