MATLAB please provide a code and do not forget the fprintf statement. Thank you!

HW1_3 problem 3.13/4.1 The 'divide and average' method, an old-time iterative method for approximating the square root of any positive number a, can be formulated as * = *+a/X. Write a MATLAB code (script) to find the square root of 15 correct to 4 significant figures and use an fprintf statement to write your final answer to the screen. 2