Algebra 2 4.1 Matrix Operations. Definition Matrix-A rectangular arrangement of numbers in rows and columns Dimensions- number of rows then columns Entries-

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Presentation transcript:

Algebra Matrix Operations

Definition Matrix-A rectangular arrangement of numbers in rows and columns Dimensions- number of rows then columns Entries- The numbers Equal Matrices- their dimensions are the same and the entries in corresponding positions are equal.

Example

Examples

Adding and Subtracting To add or subtract matrices, add or subtract corresponding entries. Note: you can only add or subtract matrices if they have the same dimensions

Examples

Definition Scalar- A real number Scalar Multiplication- multiplying a number by a real number To multiply a matrix by a scalar (scalar multiplication): multiply each entry in the matrix by the scalar

Examples

Solving Matrix Equations

Properties of Matrix Operations