I think we should stop chatting because it is abother persons thread, and also, we have already reached that magical point where I have no idea what you are talking about.
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
Yes Bobbym answer Given is
would you like to explain it to me. Thanks
I know of nothing better than computing the divisors and then checking mod 4 for each one.
I have been researching the problem for something else but have not found anything.
Just finished reading 8 books on number theory, found 3 new was to compute the Jacobi symbol but did not find a shortcut for yours.
Last edited by bobbym (2013-02-27 12:01:44)
In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.