cslarsen / cslarsen/eulers-totient-function

What is the purpose of the PRIMES parameter?

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Dominant language
C++
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Description

Hello,

Thank you for sharing this code. I'd like to use it. But I'm not fluent in C or C++ (nor in English ^^) and I don't understand what is the purpose of `PRIMES` in the templated function `phi`. For example you call `phi<100>(12)`. What is the role of `100` here?

Contributor guide

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Research direction

Start by reading the templated function `phi` and the example call `phi<100>(12)` in the repository. Clarify the purpose of the `PRIMES` parameter and explain what `100` means in the example; done means a newcomer can understand the parameter without needing additional context.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
documentation
Issue type
Documentation
Difficulty
1/5
Estimated time
Under an hour
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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