seems to be working fine

Author: Jaroslaw Zmudzinski

cachematrix.R

@@ -1,15 +1,46 @@
-## Put comments here that give an overall description of what your
-## functions do
-
-## Write a short comment describing this function
+## function makeCacheMatrix creates an object that is used to store
+## a provided matrix and it's computed inverse
+## it returns a list with matrix getter and setter, along with functions
+## used to store and return computed matrix inverse
 
 makeCacheMatrix <- function(x = matrix()) {
-
+  # variable m is used to 
+  m <- NULL
+  # getter for x matrix
+  set <- function(y) {
+    x <<- y
+    # making sure cache gets NULLified when stored vector is overwritten
+    m <<- NULL
+  }
+  # getter for x matrix
+  get <- function() x
+  # store matrix inverse
+  setinverse <- function(inverse) m <<- inverse
+  # get stored matrix inverse
+  getinverse <- function() m
+  # generating list to be returned
+  list(set = set, get = get,
+       setinverse = setinverse,
+       getinverse = getinverse)
 }
 
 
-## Write a short comment describing this function
+## function cacheSolve is actually solving the equation a %*% x = b for x
+## storing the solution in x object and returning stored solution if available
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+  # try to get cached matrix inverse from x object
+  m <- x$getinverse()
+  if(!is.null(m)) {
+    # return stored matrix inverse if available
+    message("getting cached matrix inverse")
+    # stop processing function and return solution from cache in x
+    return(m)
+  }
+  # solve matrix inverse
+  data <- x$get()
+  m <- solve(data, ...)
+  # and store it in x object
+  x$setinverse(m)
+  m
 }