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1 | 1 | ## Put comments here that give an overall description of what your
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2 | 2 | ## functions do
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3 | 3 |
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| 4 | +# Answer: |
| 5 | +#The provided code defines two functions, makeCacheMatrix and cacheSolve, |
| 6 | +#which work together to create a matrix object |
| 7 | +#capable of caching its inverse and efficiently retrieving it when needed. |
| 8 | + |
| 9 | +########################################################################### |
| 10 | + |
| 11 | +# Create a matrix object that can cache its inverse |
| 12 | +makeCacheMatrix <- function(x = matrix()) { |
| 13 | + # Initialize an empty variable to store the cached inverse |
| 14 | + cached_inverse <- NULL |
| 15 | + |
| 16 | + # Function to set the matrix and invalidate the cached inverse |
| 17 | + setMatrix <- function(matrix) { |
| 18 | + x <<- matrix |
| 19 | + cached_inverse <<- NULL |
| 20 | + } |
| 21 | + |
| 22 | + # Function to retrieve the matrix |
| 23 | + getMatrix <- function() { |
| 24 | + x |
| 25 | + } |
| 26 | + |
| 27 | + # Function to compute the inverse and cache it |
| 28 | + cacheInverse <- function() { |
| 29 | + if (!is.null(cached_inverse)) { |
| 30 | + # If the inverse is already cached, return it |
| 31 | + message("Retrieving cached inverse.") |
| 32 | + return(cached_inverse) |
| 33 | + } else { |
| 34 | + # If the inverse is not cached, compute it using solve function |
| 35 | + message("Calculating inverse.") |
| 36 | + cached_inverse <<- solve(x) |
| 37 | + return(cached_inverse) |
| 38 | + } |
| 39 | + } |
| 40 | + |
| 41 | + # Return a list of functions to be used as the special matrix object |
| 42 | + list(setMatrix = setMatrix, getMatrix = getMatrix, cacheInverse = cacheInverse) |
| 43 | +} |
| 44 | + |
| 45 | +# Function to compute the inverse of the matrix using caching |
| 46 | +cacheSolve <- function(cacheMatrix) { |
| 47 | + # Call the cacheInverse function from the cacheMatrix object |
| 48 | + cacheMatrix$cacheInverse() |
| 49 | +} |
| 50 | + |
| 51 | +# An example of how the function works! |
| 52 | +matrix1 <- makeCacheMatrix(matrix(c(1, 2, 3, 4), nrow = 2)) |
| 53 | + |
| 54 | +# Compute the inverse |
| 55 | +cacheSolve(matrix1) # This will calculate and cache the inverse |
| 56 | + |
| 57 | +# Compute the inverse again, and it will retrieve the cached value without re-computing |
| 58 | +cacheSolve(matrix1) |
| 59 | + |
| 60 | +######################################################### |
| 61 | + |
4 | 62 | ## Write a short comment describing this function
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5 | 63 |
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6 | 64 | makeCacheMatrix <- function(x = matrix()) {
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7 | 65 |
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8 | 66 | }
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9 | 67 |
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| 68 | +## Answer |
| 69 | +#[This function, "makeCacheMatrix," appears to be a constructor for a cache-enabled matrix. |
| 70 | +#The function takes one parameter, 'x,' which is a matrix with |
| 71 | +#a default value of an empty matrix if not provided.] |
| 72 | + |
10 | 73 |
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11 | 74 | ## Write a short comment describing this function
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12 | 75 |
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13 | 76 | cacheSolve <- function(x, ...) {
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14 | 77 | ## Return a matrix that is the inverse of 'x'
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15 | 78 | }
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| 79 | + |
| 80 | +## Answer |
| 81 | +#This function is designed to |
| 82 | +#calculate and return the inverse of a given matrix 'x'. |
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