From 63e7e0d505729ad0e8b48e8b9ce95cb5fdbf2a56 Mon Sep 17 00:00:00 2001
From: Michael Wimsatt <mike.wimsatt@gmail.com>
Date: Sat, 19 Apr 2014 17:35:12 -0400
Subject: [PATCH] I think this is right.

---
 cachematrix.R | 34 +++++++++++++++++++++++++++-------
 1 file changed, 27 insertions(+), 7 deletions(-)

diff --git a/cachematrix.R b/cachematrix.R
index a50be65aa44..8ff56a04f99 100644
--- a/cachematrix.R
+++ b/cachematrix.R
@@ -1,15 +1,35 @@
-## Put comments here that give an overall description of what your
-## functions do
+## This file includes functions for calculating and caching the inversion of a 
+## matrix.
 
-## Write a short comment describing this function
-
-makeCacheMatrix <- function(x = matrix()) {
+## This function creates a matrix which can cache its own inverse.
 
+makeCacheMatrix <- function(x = numeric()) {
+	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
+## This function computes the inverse of a matrix or retrieves the cached 
+## value if the matrix hasn't changed.
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of '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)	
+	print(m)
 }