Matrix

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Across
  1. 3. what is a square matrix in which all the elements of the main diagonal are equal, and all other elements are zero?
  2. 5. a vertical line
  3. 6. what is a matrix formed by selecting any number of rows and columns from an existing matrix?
  4. 8. a1=3,a2=4,a3=1,a4=2 what is determinant?
  5. 9. what is a matrix is the maximum number of linearly independent rows or columns in it?
  6. 10. what is a matrix is another matrix that, when multiplied with the original matrix, yields the identity matrix?
  7. 12. a horizontal line
  8. 13. what is a square matrix is a scalar value that can be calculated from its elements?
Down
  1. 1. what is a square matrix in which all the elements outside the main diagonal are zero?
  2. 2. what is a matrix involves swapping its rows and columns?
  3. 4. (–1)^i+j*M what is found by this formula
  4. 7. what is a matrix is formed by deleting some of its rows and columns?
  5. 11. what is a square matrix that does not have an inverse?