cachematrix.R

#makeCacheMatrix: This function creates a special "matrix" object that can cache its inverse.

makeCacheMatrix <- function(x = matrix()) {
    
    inverse <- NULL
    set <- function(y) {
        
        x <<- y
        inverse <<- NULL
        
    }
    
    get <- function() x
    setinverse <- function(i) inverse <<- i
    getinverse <- function() inverse
    list(set = set, get = get, setinverse = setinverse, getinverse = getinverse)

}


#cacheSolve: This function computes the inverse of the special "matrix"
#returned by makeCacheMatrix above. If the inverse has already been calculated 
#(and the matrix has not changed), then the cachesolve should retrieve the inverse 
#from the cache.

cacheSolve <- function(x, ...) {
    ## Return a matrix that is the inverse of 'x'
    i <- x$getinverse()
    if(!is.null(i)) {
        message("getting cached data")
        return(i)
    }
    data <- x$get()
    i <- solve(data, ...)
    x$setinverse(i)
    i
}