Matrices

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Across
  1. 2. ___ of a matrix is depicted by A^-1(7)
  2. 4. A square matrix whose non-diagonal elements are all zero (8)
  3. 6. [aij] m×1 is a _____ matrix (6,6)
  4. 9. A is a ____ _____ matrix if A′=(-A) (4,9)
  5. 10. The number of rows and columns that a matrix has
  6. 11. An m×n matrix is a _____ matrix if m=n (6)
  7. 12. [aij] 1×n is a ___ matrix (3,6)
Down
  1. 1. A null matrix has all its elements as ____ (4)
  2. 3. An ordered rectangular array of numbers or functions (7)
  3. 5. A square matrix in which elements in the diagonal are all 1 and rest are all zero (8,6)
  4. 7. A matrix which is formed by turning all the rows of a given matrix into columns and vice-versa (9)
  5. 8. A is a ____ matrix if A′=A (9)