cachematrix.R

## Functions for inverting matrices and caching the result.

## Create a special matrix that can cache its inverse.
makeCacheMatrix <- function(x = matrix()) {
    m <- NULL
    set <- function(y) {
        x <<- y
        m <<- NULL
    }
    get <- function() x
    setinverse <- function(inverse) m <<- inverse
    getinverse <- function() m
    list(set = set,
         get = get,
         setinverse = setinverse,
         getinverse = getinverse)
}


## Takes a matrix created with makeCacheMatrix and returns its
## inverse. Uses a cached solution when appropriate.
cacheSolve <- function(x, ...) {
    m <- x$getinverse()
    if (!is.null(m)) {
        message("getting cached data")
        return(m)
    }
    data <- x$get()
    m <- solve(data, ...)
    x$setinverse(m)
    m
}