# MAT 114 Lecture Notes - Lecture 5: Asteroid Family, Institution Of Engineering And Technology, Row And Column Vectors

## Document Summary

Matrix multiplication nm me x n matrix a is a rectangular array of real numbers with nl rows and n columns example. B to 87 matrix b is 2 3 matrix 12 rows and. 10 and o the entry biz or biz is the entry in the. Two matrices are equal have the same dimensions and the corresponding entries are equal. Square matrix matrix with same number of rows as columns examples affifisecatoconlumn b. B it 8 ioi is a row vector a. Subtraction to add or subtract they need to have matrices the same dimensions if they have the same dimension then you add or subtract1 the corresponding entries. Scalar multiplication when you multiply a matrix by a number multiply every entry in the matrix by the number examples. C tha a io i of fu 9 za t. A size 1 x n and column matrix b size n x.