10 The result is a (n by k) Matrix Matrix Multiplication (n by m) Matrix X (m by k) Matrix The number of columns of the matrix on the left = number of rows of the matrix on the rightThe result is a (n by k) Matrix
21 Matrix Reduction Definitions (1) 1. Zero Row: A row consisting entirely of zeros2. Nonzero Row: A row having at least one nonzero entry3. Leading Entry of a row: The first nonzero entry of a row.
22 Matrix Reduction Definitions (2) Reduced Matrix: A matrix satisfying the following:1. All zero rows, if any, are at the bottom of the matrix2. The leading entry of a row is 13. All other entries in the column in which the leading entry is located are zeros.4. A leading entry in a row is to the right of a leading entry in any row above it.