Update cachematrix.R

Author: 9019969355

cachematrix.R

@@ -1,15 +1,48 @@
-## Put comments here that give an overall description of what your
-## functions do
-
-## Write a short comment describing this function
 
 makeCacheMatrix <- function(x = matrix()) {
-
+    inv <- NULL  
+    
+    
+    set <- function(y) {
+        x <<- y      
+        inv <<- NULL  
+    }
+    
+    
+    get <- function() {
+        x
+    }
+    
+    
+    setInverse <- function(inverse) {
+        inv <<- inverse
+    }
+    
+    
+    getInverse <- function() {
+        inv
+    }
+    
+    
+    list(set = set, get = get, setInverse = setInverse, getInverse = getInverse)
 }
 
 
-## Write a short comment describing this function
-
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+    inv <- x$getInverse()  
+    
+    
+    if (!is.null(inv)) {
+        message("getting cached data")
+        return(inv)
+    }
+    
+    
+    mat <- x$get()  
+    inv <- solve(mat, ...)  
+    
+    
+    x$setInverse(inv)
+    
+    return(inv)
 }