(General math) The circumference eccentricity of an ellipse (review Figure) is given by th...

(General math) The circumference eccentricity of an ellipse (review Figure) is given by this formula:

Circumference eccentricity = 1 - (b / a)2

Using this formula, write a C++ program to calculate the circumference eccentricity of an ellipse with a minor radius, a, of 2.5 inches and a major radius, b, of 6.4 inches.

Figure: The minor axis, a, and the major axis, b, of an ellipse