MATRICES

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 * There are two dimensions in a matrix: Rows and Columns. In the equation for a specific matrix is written as so: R x C. The munber of rows there are is how many horizontal lines there are in the matrix and the columns are the number of vertical lines in the matrix.**======

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 * __Adding Matrices:__ Adding matrices is just like adding regular numbers. You can only add matrices with the same dimensions, though. These matrices, because they have different dimensions, can NOT be added together:**======

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 * The one on the left's dimensions are 3 x 2 and the one on the right's dimensions are 2 x 3. These matrices, because they have identical dimensions, CAN be added together: [[image:http://chem4823.usask.ca/images/matrices1.gif width="177" height="158"]] and [[image:http://chem4823.usask.ca/images/matrices1.gif width="175" height="157"]]**======

[[image:http://chem4823.usask.ca/images/matrices1.gif width="178" height="170"]] + [[image:http://chem4823.usask.ca/images/matrices1.gif width="166" height="174"]]
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[[file:Matrix.doc]]
__Subtracting Matrices__: Subtracting matrices involves the same basic principles as adding, except you subtract the elements from one another instead of adding them. F****or the example:** - =
 * This is the sum of two matrices. As portrayed by the solution, you add the numbers that correspond with each other. The numbers at the top left hand corners, 1s, are added to make the 2 shown in the specified location of the solution, and so on. As in the other numbers in the matrix correspond to that pattern, as demonstrated in the problem.

Adding and subtracting matrices.
 * And there you go.

~All by Megan Golliher**