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cachematrix.R
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cachematrix.R
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## The methods in this script are meant to:
## Create the inverse of a matrix and cache it into a special matrix object: makeCacheMatrix
## Caculate or cache the inverse of the matrix
##
## Example of use would be:
## y<-makeCacheMatrix(x)
## xInv<-cacheSolve(y)
##
## Restriction:
## the argument of the function must be a square invertible matrix
##
## This function creates the special "matrix" object that caches its inverse
makeCacheMatrix <- function(x = matrix()) {
m <- NULL
set <- function(y) {
x <<- y
m <<- NULL
}
get <- function() x
setInverse <- function(solve) m <<- solve
getInverse <- function() m
list(set = set, get = get,
setInverse = setInverse,
getInverse = getInverse)
}
## This function calculates the inverse of the matrix unless already cached.
## In that case it takes the cached inverse matrix
cacheSolve <- function(x, ...) {
## Return a matrix that is the inverse of 'x'
m <- x$getInverse()
if(!is.null(m)) {
message("getting cached data")
return(m)
}
data <- x$get()
m <- solve(data, ...)
x$setInverse(m)
m
}