[R programming] 역행렬, 행렬식 구하기

A<-matrix(c(1,0,0,1),nrow = 2, byrow = T)
A
B<-matrix(c(2,4,1,5),nrow = 2, byrow = T)
B
X<-A %*% B
X

 

#역핼렬 계산하기(solve)

Ainv<-solve(B)
Ainv

 

#행렬식 계산하기(det)
det(B)