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Matrices-and-Systems-of-Equations 2

This version was saved 15 years, 4 months ago View current version     Page history
Saved by mg170808@...
on December 17, 2008 at 3:33:40 pm
 

 

matrix- a rectangular array of numbers, algebraic symbols, or mathematical functions

To determine:

  • order
  • position

Orders are determined by row X column

 

               C

               O

               L

               U  

               M

               N

   ROW \begin{bmatrix} 9 & 8 & 6 \ 1 & 2 & 7 \ 4 & 9 & 2 \ 6 & 0 & 5 \end{bmatrix}

 

Since this has 4 rows and 3 columns it is a 4X3 matrix.

 

 

Find the location:

 

Find a1,2

  A= [ [ 2 3 -1 6 ] [-1 -1 -1 9 ] [ 1 1 6 0 ] ]

The 1st # refers to the row...  the 2nd # refers to the column...

Go to the 1st row:

     Number sequence: 2 3 -1 6

Go to the 2nd column:

     Number sequence 3 -1 1

The row and column meet at 3.

 

Video on How to use Matrices in Real Life:

http://www.youtube.com/watch?v=ILTAYypXFrE

 

 

 

For more information check out:

 

http://home.att.net/~numericana/answer/matrix.htm#elements

 

http://www.purplemath.com/modules/matrices2.htm

 

http://www.quickmath.com/www02/pages/modules/matrices/index.shtml

 

http://www.dsprelated.com/dspbooks/mdft/Matrices.html

 

http://mdm4u1.wetpaint.com/page/1.6+Matrices+Algebra?t=anon

 

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