Operations-with-Matrices


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A Matrix is a rectanguar array of numbers

 
 

Basic operations

There are a number of basic operations that can be applied to modify matrices called matrix addition, (scalar) multiplication and transposition. These, together with the matrix multiplication introduced below are the most important operations related to matrices.

 

 

Matrices can be set up in equations.

 

They are equivalent if they have the same order and contain the same elements.

 

Subtraction

EXAMPLES

       

 

 

Scalar Multiplication

A scalar is a number, not a matrix.

Zero Matrix

Matrix Multiplication

Am×n × Bn×p = Cm×p

 

 

EXAMPLES

 

 

 

Equality

Two matrices are equal if and only if

 

 

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For more practice problems and worksheets check out these AWESOME links!!!!!!!!!

 

http://edhelper.com/Matrices.htm

http://www.sosmath.com/matrix/matrix.html

http://www.justmathtutoring.com/

 

 

 

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