added functions body

Author: kkolakowski86

cachematrix.R

@@ -1,15 +1,44 @@
-## Put comments here that give an overall description of what your
-## functions do
+## This piece of code can be used to cache result of solve function to inverse
+## square matrix. Solve funtion is called only once for each matrix. 
 
-## Write a short comment describing this function
+## Function (object) containing cached inversed matrix 
 
 makeCacheMatrix <- function(x = matrix()) {
-
+    cached <- NULL # variable to store cached value
+    set <- function(y) 
+    {
+        x <<- y
+        cached <<- NULL # empty the cache, because matrix is new
+    }
+    get <- function() 
+    {
+        x
+    }
+    setInverted <- function(inverted)
+    {
+        cached <<- inverted #sets computed value to cache
+    }
+    getInverted <- function()
+    {
+        cached #returns cached value
+    }
+    list(set = set, get = get, setInverted = setInverted, getInverted = getInverted)
 }
 
 
-## Write a short comment describing this function
+## This function returns cached result of solve function if it's exists. 
+## if not it computes it and set result to cache and then returns
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+    inverted <- x$getInverted()
+    if(!is.null(inverted)) # checks if is cached
+    {
+        message("from cache")
+        return(inverted)
+    }
+    
+    data <- x$get()
+    computed <- solve(data, ...) #if not cached lets compute inversed matrix
+    x$setInverted(computed) #set to cache
+    computed
 }