cachematrix.R

## Caching the inverse of a matrix
## functions do

## makeCacheMatrix creates a special "matrix", which is really a list containing a function to
## 
## 1. set the value of the matrix
## 2. get the value of the matrix
## 3. set the value of the matrix inverse (Solve)
## 4. get the value of the matrix inverse (Solve)


makeCacheMatrix <- function(x = matrix()) {
  m <- NULL
  set <- function(y){
    x <<- y
    m <<- NULL
  }
  get <- function() x
  setSolve <- function(solve) m <<- solve
  getSolve <- function() m
  list(set = set, get = get, setSolve=setSolve, getSolve=getSolve)
}


## cacheSolve calculates the inverse of the special "matrix" created with the above function.
## However, it first checks to see if the inverse has already been calculated. 
## If so, it gets the inverse from the cache and skips the computation. 
## Otherwise, it calculates the inverse of the data and sets the value of the inverse in the cache via the setSolve function.

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