1. checking for a circle. On a line by itself, your program must either print "is a circle: YES" or "is a circle: NO", appropriately.
2. tallness or longness. If the ellipse is taller than it is long, your program must print "this is a tall ellipse" on its own line. If it is longer than it is tall, your program must instead print "this is a long ellipse" on its own line. If it is exactly as tall as it is long, don't print anything.
3. focal distance. Your program must print "focal distance, f: " followed by the actual value of the focal distance. f = √ (a2-b2), where a is the major radius and b is the minor radius.
4. eccentricity. The eccentricity of an ellipse is defined as:
e = √ (a2-b2) = √1-(b/a)2= f/a
Your program will calculate it, and print "eccentricity:" followed by the correct value.