Issue #11003 has been reported by venkatesh babu.

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

* Author: venkatesh babu
* Status: Open
* Priority: Normal
* Assignee: 
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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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