please solve using software R

Then, solve for i as 1 _ (1 + z)-20 19 (a) Use a for) loop to work out the value of i after 10001 iterations. Use the starting guess of 0.006. (b) Use a while) loop to iteratively calculate the value of i. Use a starting guess of i = 0.006. Stop the calculation when two successive values of the interest rate are less than 0.000001 apart