> I've found that I have to memorize two coeficients ... But I can't
> evaluate coeficients after rotation ...
>
> I want to know how to compute coordinates after rotation around
point
> M(x, y) by angle alpha ??
>
> faith respect,
> ..::dejan::..

I've already solved it .. and got AC ... I've used the method that
I've mentioned earlier ...

..dejan..