Complete assignement

Author: Korbik

cachematrix.R

@@ -1,15 +1,37 @@
-## Put comments here that give an overall description of what your
-## functions do
+## These functions enable the caching of the invert of a matrix by using getters and setters by function 
+## on a matrix capsule (caching the computed invert matrix)
 
-## Write a short comment describing this function
+## This function create a cacheable matrix with the default empty matrix
+## and return a list of function to modify the matrix or the cached invert of the matrix
 
 makeCacheMatrix <- function(x = matrix()) {
-
+        m <- NULL
+        set <- function(y) {
+                x <<- y
+                m <<- NULL
+        }
+        get <- function() x
+        setinv <- function(inv) m <<- inv
+        getinv <- function() m
+        list(set = set, get = get,
+             setinv = setinv,
+             getinv = getinv)
 }
 
 
-## Write a short comment describing this function
+## This function solves the invert of the 'x' cacheable matrix. 'x' must have been created 
+## with makeCacheMatrix() and set using x$set and returns a matrix that is the inverse of 'x'
+## the '...' allow to pass others arguments to the solve method
 
 cacheSolve <- function(x, ...) {
         ## Return a matrix that is the inverse of 'x'
+        m <- x$getinv()
+        if(!is.null(m)) {
+                message("getting cached data")
+                return(m)
+        }
+        data <- x$get()
+        m <- solve(data, ...)
+        x$setinv(m)
+        m
 }