Update cachematrix.R

cachematrix.R

@@ -1,15 +1,36 @@
-## Put comments here that give an overall description of what your
-## functions do
-
-## Write a short comment describing this function
-
+# Function to create 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)
+}
 
+# Function to compute the inverse of the special "matrix" 
+cacheSolve <- function(x, ...) {
+  inv <- x$getInverse()
+  if (!is.null(inv)) {
+    message("getting cached data")
+    return(inv)
+  }
+  data <- x$get()
+  inv <- solve(data, ...)
+  x$setInverse(inv)
+  inv
 }
+# Create a matrix
+A <- matrix(c(1,2,3,4), nrow = 2, ncol = 2)
 
+# Create a special "matrix" object
+cached_A <- makeCacheMatrix(A)
 
-## Write a short comment describing this function
+# Calculate the inverse (this will compute and cache the inverse)
+cacheSolve(cached_A)
 
-cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
-}
+# Call again (this will retrieve the cached inverse)
+cacheSolve(cached_A)