MATH 220 Lecture Notes - Lecture 2: Row Echelon Form, Augmented Matrix, Coefficient Matrix
Document Summary
Math 220 lecture 2 1. 2 row reduction. Matrix: a rectangular array of values containing the information of a linear system. The size of a matrix is determined by the product of its total number of rows and total. 1 42 +3 = 5 can be written as 1 4. The system can also be written as 1 4. The augmented matrix above would have a size: row column m n = 3 4. size is represented by . Example: this is a 2 2 square matrix: 2 4. Square matrix: is a matrix that has the same number of rows as columns and whose number of columns. *echelon form can typically be recognized by a staircase pattern of the leading entries. This matrix violates the second condition in the leading entry of the second column is not to the right of the leading entry of the row above it.
