Tuesday, September 14, 2010

Dimensions of a matrix

When identifying the dimensions of a matrix. One must always follow the rule. Row Times column.
For example if there are 4 rows and 5 columns. The dimensions of the matrix would be.
4 X 5.

Ex: There are 2 rows and 4 columns. Therefore the dimensions of the matrix would be 2 x 4.

*Be carefull that you don't go columns by rows. Many people mess up like this.

The rule is : Rows x Columns

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