cachematrix.R

## Put comments here that give an overall description of what your
## functions do

## Write a short comment describing this function

makeCacheMatrix <- function(x = matrix()) {
  
  inv<-NULL
  set<-function(y){
    x<<-y
    inv<<-NULL
  }
  
  get<-function()x
  setinv<-function(inverse)inv<<-inverse
  getinv<-function()inv
  list(set=set,get=get,setinv=setinv,getinv=getinv)
  
}


## Write a short comment describing this function

cacheSolve <- function(x, ...) {
  ## Return a matrix that is the inverse of 'x'
  inv<-x$getinv()
  if(!is.null(inv)){
    return(inv)
  }
  data<-x$get()
  inv<-solve(data, ...)
  x$setinv(inv)
  inv
}