Added first pass code

Added comments and first pass at code

Author: KevinFolan

cachematrix.R

@@ -1,15 +1,52 @@
-## Put comments here that give an overall description of what your
-## functions do
-
-## Write a short comment describing this function
 
+## Function makeCacheMatrix 
+##
+## Purpose: 
+##  Create a special "matrix" object that can cache its inverse.
+##
+## On Entry:
+##  x - matrix
+##
+## One Exit:
+##  returns an object that sotres a numeric vector and caches it 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)
+  
 }
 
-
-## Write a short comment describing this function
-
+## Function cacheSolve
+##
+## Purpose:
+##  Computes the inverse of the special "matrix" returned by makeCacheMatrix.
+##  If the inverse has already been calculated (and the matrix has not changed), then the cachesolve
+##  should retrieve the inverse from the cache.
+## 
+## On Entry:
+##  Params: x matrix
+##          '...' to pass through to solve
+## On Exit:
+##  Returns a matrix that is the inverse of 'x'
+##
 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 <- inverse(data, ...)
+  x$setinverse(m)
+  m
 }