CRASSWORD FF

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Across
  1. 2. A matrix with zero elements other than the main diagonal
  2. 4. When this sign {A^-1} is present, we find what is the matrix ?
  3. 9. n=rank(A)+nullity(A),What is n?
  4. 10. The row to which of multiple of pivot row is added is called the ____ row.
  5. 11. If W=(a11=sin a21=cos),compute W×W
  6. 12. A matrix whose main diagonal elements are equal and other elements are zero
  7. 13. Calculated by this formula: ..=(-1)^i+jMij
Down
  1. 1. A system of row and column
  2. 3. If M12=-5, C12=?
  3. 5. A matrix with equal row and columns
  4. 6. What is the element called that becomes 1 in the Gauss-Jordan method ?
  5. 7. What is needed to find the determinant of a 3×3 matrix?
  6. 8. The dimension of the nullspace of A is called the _____ of A
  7. 10. a11=1, a12=-1, a13=2, C11=4, C12=0, C13=3 , calculate the determinant.
  8. 14. The dimension of the row(or column) space of a matrix A is called the ..... of A and is denoted by rank