cachematrix.R

## Functions to demonstrate caching of the inverse of a matrix.

## Below function makes a special "matrix" which is actually a list containing functions to get/set the matrix and get/set the inverse of the matrix

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


## The below function calculates the inverse of the matrix created using the function above, it first checks if the inverse has been already created. If yes it 
## skips calculating the inverse otherwise calculated it.

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