comparing double values in C++

Question

I have following code for double comparision. Why I am getting not equal when I execute?

#include 
#include 
#include          


        

Answer 1

The epsilon for 2 doubles is 2.22045e-016

By definition, epsilon is the difference between 1 and the smallest value greater than 1 that is representable for the data type.

These differ by more than that and hence, it returns false

(Reference)