Issue #9528 has been updated by Zachary Scott.

Category set to lib
Status changed from Open to Feedback
Assignee set to Zachary Scott
Target version set to current: 2.2.0

If you're using subversion you can use the `svn diff` or `svn di` command to output a patch, and then just upload the file. For example:

`svn diff lib/mathn.rb > my-patch-to-mathn.diff`

You can read more about `svn diff` in the [svnbook](http://svnbook.red-bean.com/en/1.7/svn.ref.svn.c.diff.html)

Bonus points, when requesting a feature please try to give as many details as possible about your feature:

1) What is your proposed change?
2) Why would people use it? (use cases)
3) Why should this be added to ruby?

Are just a few of the questions you could try to answer. We have some more detailed documentation [on contributing.rdoc](https://github.com/ruby/ruby/blob/trunk/doc/contributing.rdoc#how-to-request-features)

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Feature #9528: mathn.rb library
https://bugs.ruby-lang.org/issues/9528#change-45433

* Author: Umair Amjad
* Status: Feedback
* Priority: Normal
* Assignee: Zachary Scott
* Category: lib
* Target version: current: 2.2.0
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I want to add factorial method mathn.rb file as feature of Math module.



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