Matrices and Matrix Operations

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Flashcards about matrices and matrix operations.

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9 Terms

1
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Matrix

A rectangular array of numbers arranged in rows and columns.

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Dimensions of a Matrix

The number of rows and columns in a matrix.

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Matrix Addition and Subtraction

Adding or subtracting corresponding entries of matrices with equal dimensions.

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Scalar Multiplication

Multiplying each entry in a matrix by a constant.

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Matrix Multiplication

Requires the number of columns in the first matrix to match the number of rows in the second matrix.

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Column

A set of numbers aligned vertically in a matrix.

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Entry

An element, coefficient, or constant in a matrix.

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Row

A set of numbers aligned horizontally in a matrix.

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Scalar Multiple

An entry of a matrix that has been multiplied by a scalar.