add function

get inverse of a  maxtric

Author: dengbenyang

cachematrix.R

@@ -1,15 +1,32 @@
-## Put comments here that give an overall description of what your
-## functions do
+## Caching the Inverse of a Matrix
 
-## Write a short comment describing this function
+## This function creates a special "matrix" object that can cache its inverse
 
 makeCacheMatrix <- function(x = matrix()) {
-
+	s <- NULL
+    set <- function(y) {
+        x <<- y
+        s <<- NULL
+    }
+    get <- function() x
+    setsolve <- function(solve) s <<- solve
+    getsolve <- function() s
+    list(set = set, get = get,
+         setsolve = setsolve,
+         getsolve = getsolve)
 }
 
 
-## Write a short comment describing this function
+## This function computes the inverse of the special "matrix" returned by makeCacheMatrix above.
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+	s <- x$getsolve()
+    if(!is.null(s)) {
+        message("getting cached data")
+        return(s)
+    }
+    data <- x$get()
+    s <- solve(data, ...)
+    x$setsolve(s)
+    s
 }