Assignment: Caching the Inverse of a Matrix

This assignment contains 2 functions:

1. makeCacheMatrix: This function creates a special "matrix" object that can cache its inverse.
2. cacheSolve: 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.

sample execution

matrix m created

m=matrix(c(1,2,3,4),2,2)

we create an inverse matrix caching object a and pass matrix m

a<-makeCacheMatrix(m)

we pass a to the cachcesolve function to retrieve inverse. First time the inverse is calculated and the cache is stored

cacheSolve(a) [,1] [,2] [1,] -2 1.5 [2,] 1 -0.5

second time, upon calling teh same function with a, inverse matrix is retrieved from cache.

cacheSolve(a) getting cached data [,1] [,2] [1,] -2 1.5 [2,] 1 -0.5