Introduction to Matrices

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In this lesson, we will learn that a matrix is an ordered array of numbers. Additionally, we will learn how to determine the order of a matrix. This is stated as the number of rows by the number of columns. For example, a matrix with 3 rows and 4 columns has an order of 3 x 4. We will also learn about the specific notation used to find an entry in a matrix. If we have a matrix A, then a1,3 would be the element in A that is in the first row and third column. Lastly, we will learn that two matrices are equal if and only if they have the same order or size and each corresponding element is equal.
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