cachematrix.R

## This function creates a special matrix which can cache its inverse
## The "special" matrix is a list containing functions to 
##  - set and get the matrix
##  - get and set the inverse
makeCacheMatrix <- function(x = matrix()) {
  m <- NULL
  set <- function(y) {
    x <<- y
    m <<- NULL
  }
  get <- function() x
  setInverse <- function(inverse) m <<- inverse
  getInverse <- function() m
  list(set = set, get = get,
       setInverse = setInverse,
       getInverse = getInverse)
}


## This function returns the cached inverse of the matrix if available 
## otherwise it calculates the inverse and saves it
cacheSolve <- function(x, ...) {
  ## Return a matrix that is the inverse of 'x'
  m <- x$getInverse()
  if(!is.null(m)) {
    message("getting cached data")
    return(m)
  }
  data <- x$get()
  m <- solve(data, ...)
  x$setInverse(m)
  m 
}