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List:       ruby-core
Subject:    [ruby-core:68681] [Ruby trunk - Feature #11003] [Feedback] Fast modular exponentiation
From:       muraken () gmail ! com
Date:       2015-03-30 4:18:39
Message-ID: redmine.journal-51969.20150330041839.ecfe9a791d87d506 () ruby-lang ! org
[Download RAW message or body]

Issue #11003 has been updated by Kenta Murata.

Status changed from Open to Feedback
Assignee set to Yukihiro Matsumoto

I have two questions:

- Do you have some concrete use cases in which this new feature is used?
- Why don't you make a gem library to provide this feature?  or  Are there gem \
libraries providing it?


----------------------------------------
Feature #11003: Fast modular exponentiation
https://bugs.ruby-lang.org/issues/11003#change-51969

* Author: venkatesh babu
* Status: Feedback
* Priority: Normal
* Assignee: Yukihiro Matsumoto
----------------------------------------
I would like to suggest, implementing "fast Modular Exponentiation " \
                (http://en.wikipedia.org/wiki/Modular_exponentiation) for fixnum \
                class.
Eg: A function like pow(a, n, MOD) can be computed more efficiently than (a**n) % MOD



-- 
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