From efaf5377018240b6275d3e20ad3cce9688574ec8 Mon Sep 17 00:00:00 2001
From: Cam Linke <cam.linke@gmail.com>
Date: Sun, 27 Apr 2014 12:53:46 -0600
Subject: [PATCH 1/3] added comments explaining function

---
 cachematrix.R | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/cachematrix.R b/cachematrix.R
index a50be65aa44..68fbf3cae27 100644
--- a/cachematrix.R
+++ b/cachematrix.R
@@ -1,14 +1,22 @@
 ## Put comments here that give an overall description of what your
 ## functions do
 
+## This library is creates a matrix that can cache it's inverse
+## and gives computes the inverse of the created matrix
+
 ## Write a short comment describing this function
 
-makeCacheMatrix <- function(x = matrix()) {
+## 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'

From bb8f2e052334a75a360e1a0f4c1f510eb15bf594 Mon Sep 17 00:00:00 2001
From: Cam Linke <cam.linke@gmail.com>
Date: Sun, 27 Apr 2014 12:58:44 -0600
Subject: [PATCH 2/3] first pass at solution

---
 cachematrix.R | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/cachematrix.R b/cachematrix.R
index 68fbf3cae27..7209751b4fd 100644
--- a/cachematrix.R
+++ b/cachematrix.R
@@ -9,6 +9,14 @@
 ## makeCacheMatrix: This function creates a special "matrix" object that can cache its inverse.
 
 makeCacheMatrix <- function(x = matrix()) {
+  m <- NULL
+  set <- function(y) {
+    x <<- y
+    m <<- NULL
+  }
+  get <- function() x
+  setmatrix <- function(matrix) m <<- mean
+  getmatrix <- function() m
   
 }
 
@@ -19,5 +27,13 @@ makeCacheMatrix <- function(x = matrix()) {
 ## retrieve the inverse from the cache.
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+  m <- x$getmatrix()
+  if(!is.null(m)) {
+    message("getting cached data")
+    return(m)
+  }
+  data <- x$get()
+  m <- matrix(data, ...)
+  x$setmatrix(m)
+  m
 }

From 669cabcfb9a49004d32c6a66b9ba9839a50f426e Mon Sep 17 00:00:00 2001
From: Cam Linke <cam.linke@gmail.com>
Date: Thu, 19 Jun 2014 08:40:08 -0600
Subject: [PATCH 3/3] created cachematrix.r implementation

---
 cachematrix.R | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/cachematrix.R b/cachematrix.R
index 7209751b4fd..51f1a7298e7 100644
--- a/cachematrix.R
+++ b/cachematrix.R
@@ -15,8 +15,12 @@ makeCacheMatrix <- function(x = matrix()) {
     m <<- NULL
   }
   get <- function() x
-  setmatrix <- function(matrix) m <<- mean
-  getmatrix <- function() m
+  ## Set and cache the inverse of the matrix using the solve function
+  setinverse <- function(solve) m <<- inverse
+  getinverse <- function() m
+  ## Create a list containing a function to set the value of the matrix, get the value of the matrix,
+  ## set the value of the inverse, and get the value of the inverse.
+  list(set=set, get=get, setinverse=setinverse, getinverse=getinverse)
   
 }
 
@@ -27,13 +31,16 @@ makeCacheMatrix <- function(x = matrix()) {
 ## retrieve the inverse from the cache.
 
 cacheSolve <- function(x, ...) {
-  m <- x$getmatrix()
+  m <- x$getinverse()
+  ## check to see if there is already a cached inverse
   if(!is.null(m)) {
     message("getting cached data")
     return(m)
   }
+  
+  ## If there is no cached inverse calculate the inverse, cache it and return it
   data <- x$get()
-  m <- matrix(data, ...)
-  x$setmatrix(m)
+  m <- solve(data, ...)
+  x$setinverse(m)
   m
 }