completed

plannifico · plannifico · commit 11a94846be75 · 2015-04-22T07:34:00.000+02:00
diff --git a/cachematrix.R b/cachematrix.R
@@ -5,11 +5,32 @@
 
 makeCacheMatrix <- function(x = matrix()) {
 
+        i <- NULL
+        set <- function (y) {
+                x <<- y
+                i <<- NULL
+        }
+        get <- function() x
+        setinverse <- function(inverse) i <<- inverse
+        getinverse <- function() i
+        list(set = set, get = get,
+             setinverse = setinverse,
+             getinverse = getinverse)
 }
 
 
 ## Write a short comment describing this function
 
 cacheSolve <- function(x, ...) {
         ## Return a matrix that is the inverse of 'x'
+        
+        i <- x$getinverse()
+        if(!is.null(i)) {
+                message("getting cached data")
+                return(i)
+        }
+        data <- x$get()
+        i <- solve(data, ...)
+        x$setinverse(i)
+        i
 }
