Showing posts with label Matrices Determinans. Show all posts
Showing posts with label Matrices Determinans. Show all posts

Friday, July 23, 2010

Note on Matrices Determinans

In this lesson let me help you on matrices and determinants. Before i go more deeper on this let me help you on what is all about Matrices.

Matrices

1. A matrix is a rectangular array of numbers, arranged in rows and columns.

2. Order of a matrix = Number of rows in it x Number of columns in it

3. Row matrix is a matrix with only one row.

4. Column matrix is a matrix with only one column.

5. Zero or Null matrix is a matrix in which every element is zero.

Determinants and Matrices


Matrices : A rectangular array of entries is called a Matrix. The entries may be real, complex or functions. The entries are also called as the elements of the matrix.

Determinants : Let A = [aij] be a square matrix. We can associate with the square matrix A, a determinant which is formed by exactly the same array of elements of the matrix A. A determinant formed by the same array of elements of the square matrix A is called the determinant of the square matrix