The German mathematician Gottfried Leibniz developed the following method to approximate the value of π: π/4 = 1 – 1/3 + 1/5 – 1/7 + … Write a program that allows the user to specify the number of...

The German mathematician Gottfried Leibniz developed the following method to approximate the value of π:

π/4 = 1 – 1/3 + 1/5 – 1/7 + …

Write a program that allows the user to specify the number of iterations used in this approximation and displays the resulting value.