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38 lines (35 loc) · 1.3 KB
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## Put comments here that give an overall description of what your
## functions do
## The functions makeCacheMatrix and cacheSolve enable the caching the inverse
## operation on a matrix, which would otherwise be expensive to do repeatedly
## Write a short comment describing this function
## makeCacheMatrix: This function creates a special "matrix" object that can
## cache its inverse
makeCacheMatrix <- function(x = matrix()) {
m <- NULL
set <- function(y) {
x <<- y
m <<- NULL
}
get <- function() x
setinverse <- function(inversem) m <<- inversem
getinverse <- function() m
list(set = set, get = get, setinverse = setinverse, getinverse = getinverse)
}
## Write a short comment describing this function
## cacheSolve: This function computes the inverse of the special "matrix" returned
## by makeCacheMatrix. 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'
inversem <- x$getinverse()
if(!is.null(inversem)) {
message("getting cached inverse matrix")
return(inversem)
}
data <- x$get()
inversem <- solve(data, ...)
x$setinverse(inversem)
inversem
}