cachematrix.R

## Functions for calculating, caching, and retrieving the inverse of a matrix

## 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(inv) inverse <<- inv
  getinverse <- function() inverse
  list(set = set, get = get,
       setinverse = setinverse,
       getinverse = getinverse)
}


## 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, ...) {
  m <- x$getinverse()
  if(!is.null(m)) {
    message("getting cached data")
    return(m)
  }
  data <- x$get()
  m <- solve(data, ...)
  x$setinverse(m)
  m
}