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cachematrix.R
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41 lines (33 loc) · 902 Bytes
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## This function makes cache matirx and get inverse of the matric with catcheSolve command
## the functions create a Cache Matrix
makeCacheMatrix <- function(x = matrix()) {
m<-NULL
set<-function(y){
x<<-y
m<<-NULL
}
get<-function() x
setmatrix<-function(solve) m<<- solve
getmatrix<-function() m
list(set=set, get=get,
setmatrix=setmatrix,
getmatrix=getmatrix)
}
## create a sample matrix and save as b
b <- makeCacheMatrix( matrix(c(1,2,8,9), nrow = 2, ncol = 2) )
## this function creats a matix that is inverse of x
cacheSolve <- function(x=matrix(), ...) {
m<-x$getmatrix()
if(!is.null(m)){
message("getting cached data")
return(m)
}
matrix <- x$get()
m<-solve(matrix, ...)
x$setmatrix(m)
m
}
cacheSolve(b)## returns inverse of matrix b from cache
## [,1] [,2]
##[1,] -1.2857143 1.1428571
##[2,] 0.2857143 -0.1428571