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38 changes: 38 additions & 0 deletions emmalucas
Original file line number Diff line number Diff line change
@@ -0,0 +1,38 @@

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

## This function creates a special "matrix" object
## that can cache its inverse.

makeCacheMatrix <- function(x = matrix()) {
cachedInverse <- NULL
set <- function(y) {
x <<- y
cachedInverse <<- NULL
}
get <- function() x
setInverse <- function(inverse) cachedInverse <<- inverse
getInverse <- function() cachedInverse
list(set = set, get = get,
setInverse = setInverse,
getInverse = getInverse)
}

## 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.


cacheSolve <- function(x, ...) {
inv <- x$getinverse()
if(!is.null(inv)) {
message("getting cached data.")
return(inv)
}
data <- x$get()
inv <- solve(data)
x$setinverse(inv)
inv
}