Matrices - Matrix Multiplication(MM).C24 - Page 191

Manual Solution

Week01 Discussion

R Language Solution
A <- matrix(c(1,2,3,-2,0,1,-2,-1,1,1,3,1), ncol = 4, byrow = TRUE)
B <- matrix(c(3,4,0,2), ncol = 1, byrow = TRUE)
C <- A%*%B
print (C)
##      [,1]
## [1,]    7
## [2,]    2
## [3,]    9