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()) {

}


## Write a short comment describing this function

cacheSolve <- function(x, ...) {
        ## Return a matrix that is the inverse of 'x'
}

rm(list = ls())

makeCacheMatrix <- function(ma = matrix()) {
        im <- NULL
        setMatrix <- function(y) {
                ma <<- y
                im <<- NULL
        }
        getMatrix <- function() ma
        setinverse <- function(inv) im <<- inv
        getinverse <- function() im
        list(setMatrix = setMatrix,
             getMatrix = getMatrix,
             setinverse = setinverse,
             getinverse = getinverse)
}

cacheSolve <- function(x, ...) {
        im <- x$getinverse()
        if (!is.null(im)) {
                message("getting cached inverse matrix")
                return(im)
        }
        data <- x$getMatrix()
        i <- solve(data, ...)
        x$setinverse(i)
        i
}

##testing the functions
B <- matrix(c(1,2,3,4),2,2)

B1 <- makeCacheMatrix(B)
cacheSolve(B1) 

cacheSolve(B1) 
B2 <- makeCacheMatrix(-B)
cacheSolve(B1)
cacheSolve(B2)