mathematics

Added a cpp file for Floyd Algorithm for cycle detection Description of Change

Checklist

• Added de

Description of Change

References

Checklist

This migration is a great first issue for an enthusiastic open source contributor who wants to get started contributing to ROOT with a well-defined task!

Introduction

RooFit needs to be migrated to use range-based loops to iterate over RooArgLists and RooArg Sets. The [deprecated iterator-creating functions](https://github.com/root-project/root/blob/master/roofit/roofitcore/inc/RooAbs

IEEE 754 recommends (but does not require) a compound function, which is in the process of being standardized for C and C++; we should expose it in swift-numerics. The simplest, most literal translation of the operation into Swift would be:

extension RealFunctions {
  /// (1+x)ⁿ
  /// 
  /// Returns NaN if x < -1.
  static func compound(_ x: Self, _ n: Int) -> Self {
    // not

The igraph tutorial (here online, source file here) should be reviewed:

• Is it up to date?
• Is it understandable by a newcomer?
• Are essential points unexplained or missing?

Ideally, this should be done by someone who is new to using igraph, to get a fresh perspective. Th