Introduction on Matrices


By reading this article your following problems will be answered.

What are matrices.
Types of matrices.
Diagonal elements of matrices.
What are the diagonal elements of a matrix.

What is a matrix
  • Matrix is a rectangular table of numbers.
  • ‘A’ is a matrix of order m×n.
  • The ith row and jth column element of a matrix is denoted by aij.
  • Order of the matrix is the Number of rows × Number of columns
  • There are few types of matrices.
    1. Square matrix
    2. Diagonal matrix
    3. Identity matrix
    4. Upper triangular matrix
    5. Lower triangular matrix
    6. Symmetric matrix
    7. Shew-symmetric matrix
    8. Zero matrix
    9. Row matrix (Row vector)
    10. Column matrix (Column vector)
  • Elements of a matrix are the numbers which are contained inside the matrix.
  • Elements of a matrix can be any numerical value including fractions, decimals, negative numbers and zero.
  • Now let’s get to know about diagonal elements of a matrix.

Diagonal elements

  • Diagonal elements are the elements which both i and j values are equal.
  • In the following image, diagonal elements are circled in red.
Diagonal elements of matrices

Know more about Matrices

Matrices

What are Transpose Matrices

What are the types of Matrices

How to add or subtract Matrices