GMP library usage

[Joerg Arndt]

* Mehari Zeraberuk <mehzera75 at gmail.com> [Jun 27. 2012 13:45]:
> [...]

> 
> When I compare my results with sage's notebook result:
> 2P and 3P are the same in both. When I go forward they are not the same but
> the values exist in each other. Example,value of 4P in my program is the
> same as the value of 6P in sage. And the value of 6P in my program is the
> value 4P in sage. This relation exists
> in between [5P,7p], [9P,13P], [11P,15P] of my program and sage's output.
> 
> [...]

Suggest to test that everything displayed are indeed points
on the curve.  Assume this is the case, then the program
missing any point is at error.