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Definition of a matrix.

Operations over matrixes.

Kinds of matrixes.

 

Definition 1:Matrix of the dimension m on n (m x n) it is the rectangular table of numbers containing m of lines and n of column. The numbers making a matrix, are called the elements of a matrix.

Matrixes are designated by uppercase letters of the Latin alphabet, for example: A, B, C, Elements of a matrix are designated by lowercase letters with double indexation, for example: aij, where i number of line, j number of column.

General view of a matrix is:

, where .

 


Brief record of a matrix Full record of a matrix

Examples of matrixes:

Definition 2:Two matrixes of one dimension are called equal if they coincide element-by-element, that is for all .

 


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| Kinds of matrixes.

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