diff --git a/cachematrix.R b/cachematrix.R index a50be65aa44..3119814d0c8 100644 --- a/cachematrix.R +++ b/cachematrix.R @@ -4,12 +4,40 @@ ## Write a short comment describing this function 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 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) + + # Return the inverse + inv }