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cachematrix.R #5390

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46 changes: 39 additions & 7 deletions cachematrix.R
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Original file line number Diff line number Diff line change
@@ -1,15 +1,47 @@
## Put comments here that give an overall description of what your
## functions do
#Second programming assignment:

## Write a short comment describing this function
#*makeCacheMatrix:* This function creates a special "matrix" object that can
# cache its inverse.

makeCacheMatrix <- function(x = matrix()) {
#*cacheSolve:* This function computes the inverse of the special "matrix" returned
# by `makeCacheMatrix` above. If the inverse has already been calculated
# (and the matrix has not changed), then `cacheSolve` should retrieve
# the inverse from the cache.

}

makeCacheMatrix <- function(x = matrix()) {

i <- NULL #where the inverse is to be stored
set <- function(y) {
x <<- y #The <<- operator is necessary to enclose the enviroment of the parent function
i <<- NULL
}

get <- function() x #Anonymus functions to set and get a matrix and cahce its inverse
setinverse <- function(inverse) i <<- inverse
getinverse <- function() i
list(set = set, get = get,
setinverse = setinverse,
getinverse = getinverse)
}

## Write a short comment describing this function

# Now, we are interested in calculating the inverse of the matrix object generated
#by the parent function makeCacheMatrix.
#If the inverse is created (!is.null) then cacheSolve will retrieve it, otherwise
#it will calculate it.

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

i <- x$getinverse()
if (!is.null(i)) {
message("getting cached data")
return(i)
}

data <- x$get()
i <- solve(data, ...)
x$setinverse(i)
i

}