Lesson Vocabulary

• scalar
• scalar multiplication

Take Note Key Concept: Scalar Multiplication

To multiply a matrix by a scalar c, multiply each element of the matrix by c.

• A = [ a 11 a 12 a 13 a 21 a 22 a 23 ] c A = [ c a 11 c a 12 c a 13 c a 21 c a 22 c a 23 ] eh equals . matrix with 2 rows and 3 columns , row1 column 1 , eh sub 1 1 , column 2 eh sub 1 2 , column 3 eh sub 1 3 , row2 column 1 , eh sub 2 1 , column 2 eh sub 2 2 , column 3 eh sub 2 3 , end matrix . c eh equals . matrix with 2 rows and 3 columns , row1 column 1 , c , eh sub 11 , column 2 c , eh sub 12 , column 3 c , eh sub 13 , row2 column 1 , c , eh sub 21 , column 2 c , eh sub 22 , column 3 c , eh sub 23 , end matrix