Solve (heh, a pun) assignment.

Author: Jonas Friedemann Grote

cachematrix.R

@@ -1,15 +1,34 @@
 ## Put comments here that give an overall description of what your
 ## functions do
 
-## Write a short comment describing this function
+## Create a matrix that will cache its inverse.
 
 makeCacheMatrix <- function(x = matrix()) {
+    inverse <- NULL
+    set <- function(y) {
+        x <<- y
+        m <<- NULL
+    }
+    get <- function() x
+    setinverse <- function(inverse) inverse <<- inverse
+    getinverse <- function() inverse
+    list(set = set, get = get,
+         setinverse = setinverse,
+         getinverse = getinverse)
 
 }
 
 
-## Write a short comment describing this function
+## Return a matrix that is the inverse of 'x'
+## Requires x to be of "makeCacheMatrix" type
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+    inverse <- x$getinverse()
+    if (!is.null(inverse)) {
+        return(inverse)
+    }
+    data <- x$get()
+    inverse <- solve(data)
+    x$setinverse(inverse)
+    inverse
 }