Page 499: Chapter 7: Q14:

The following defines a function that calculates an approximation of the square root of a number, starting with an approximate answer (approx), within the specified tolerance (tol). SqrRoot(number, approx, tol) = {approx, if |approx^2 - number| tol What limitations must be made on the values of the parameters if this method to work correctly? Write a recursive version of the function SqrRoot. Write a nonrecursive version of the function SqrRoot. Write a driver to test the recursive and iterative versions of the function SqrRoot