Added comments for the functions defined.

Author: stuartcw

cachematrix.R

@@ -1,14 +1,15 @@
 ## Put comments here that give an overall description of what your
 ## functions do
 
-## Write a short comment describing this function
+## makeCacheMatrix: This function creates a special "matrix" object that can cache its inverse.
 
 makeCacheMatrix <- function(x = matrix()) {
 
 }
 
-
-## Write a short comment describing this function
+## 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'