Adding implementaion for makeCacheMatrix and cacheSolve

cachematrix.R

@@ -1,15 +1,35 @@
-## Put comments here that give an overall description of what your
-## functions do
+## Below functions compute inverse of a matrix and cache the result
+## As per the assignment, the matrix supplied must be invertible 
 
-## Write a short comment describing this function
+## This function creates a special "matrix" object that can cache its inverse
 
 makeCacheMatrix <- function(x = matrix()) {
+  inv <- NULL
+  set <- function(y) {
+    x <<- y
+    inv <<- NULL
+  }
+  get <- function() x
+  setInverse <- function(inverse) inv <<- inverse
+  getInverse <- function() inv
+  list(set = set, get = get,
+       setInverse = setInverse,
+       getInverse = getInverse)
 
 }
 
 
-## Write a short comment describing this function
+## This function computes the inverse of the special "matrix" returned by makeCacheMatrix above
+## If the inverse has already been calculated (and the matrix has not changed), then the cachesolve should retrieve the inverse from the cache.
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+  inv <- x$getInverse()
+  if(!is.null(inv)) {
+    message("getting cached data")
+    return(inv)
+  }
+  data <- x$get()
+  inv <- solve(data,...)
+  x$setInverse(inv)
+  inv
 }