(Numerical Analysis) Given a number, n, and an approximation for its square root, a closer approximation of the actual square root can be obtained by using this formula:
![2099_c6c94a91-b7f3-4c12-8a49-3cc2faa2e0da.png](https://secure.tutorsglobe.com/CMSImages/2099_c6c94a91-b7f3-4c12-8a49-3cc2faa2e0da.png)
Using this information, write a C++ program that prompts the user for a number and an initial guess at its square root. Using this input data, your program should calculate an approximation of the square root that's accurate to 0.00001.