Notation of matrices

Notation of matrices


A matrix is a list of numbers put in a rectangular bracket.

The dimensions of a matrix are the number of rows and columns of the matrix. For example, if the matrix has m rows and n columns, then we say that the dimensions matrix is m by n.

Each entry in the matrix is called a matrix element. Let the matrix be called A. Then we say that the matrix element a4,6a_{4,6} is the entry in the 4th row and 6th column.

    • a)
      What is a matrix and the dimension of a matrix?
    • b)
      Matrix elements
  • 2.
    The Dimensions of a Matrix
    Determine the dimensions of the following matrices:
  • 3.
    Matrix Elements
    Find the matrix element (or value) of the following matrix

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Notation of matrices

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