cachematrix.R

## These functions store a matrix object and caches its inverse.

## This function provides getters and setters for a cachable matrix object.

makeCacheMatrix <- function(x = matrix()) {
    m <- NULL
    set <- function(y) {
        x <<- y
        m <<- NULL
    }
    get <- function() x
    setmatrix <- function(matrix) m <<- matrix
    getmatrix <- function() m
    list(set = set, get = get,
         setmatrix = setmatrix,
         getmatrix = getmatrix)
}


## This calculates and caches the inverse of a matrix created with the above function.
## If called again with the same matrix, it retrieves the cached inverse instead.

cacheSolve <- function(x, ...) {
    m <- x$getmatrix()
    if(!is.null(m)) {
        message("getting cached data")
        return(m)
    }
    data <- x$get()
    m <- solve(data, ...)
    x$setmatrix(m)
    m
}