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cachematrix.R
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34 lines (30 loc) · 1.1 KB
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## Here I have written a pair of functions that cache the inverse of a given matrix rather than compute it repeatedly
## If the inverse has already been calculated and the matrix has not changed, then the cachesolve should retrieve the inverse from the cache
## The function below makes a matrix and caches the inverse matrix of it
makeCacheMatrix <- function(x = matrix()) {
i <- NULL
set <- function(y) {
x <<- y
i <<- NULL
}
get <- function() x
setinverse <- function(inverse) i <<- inverse
getinverse <- function() i
list(set = set,
get = get,
setinverse = setinverse,
getinverse = getinverse)
}
##The function below computes the inverse of the special “matrix” returned by akecachematrix function above
##It should be able retrieve the inverse from the cache
cacheSolve <- function(x, ...) {
i <- x$getinverse()
if(!is.null(i)) {
message("getting cached data")
return(i)
}
data <- x$get()
i <- solve(data, ...)
x$setinverse(i)
i
}