Package: collatz 1.0.1

Nathan Levett

collatz: Functions Related to the Collatz/Syracuse/3n+1 Problem

Provides the basic functionality to interact with the Collatz conjecture. The parameterisation uses the same (P,a,b) notation as Conway's generalisations. Besides the function and reverse function, there is also functionality to retrieve the hailstone sequence, the "stopping time"/"total stopping time", or tree-graph. The only restriction placed on parameters is that both P and a can't be 0. For further reading, see <https://en.wikipedia.org/wiki/Collatz_conjecture>.

Authors:Nathan Levett [aut, cre]

collatz_1.0.1.tar.gz
collatz_1.0.1.zip(r-4.7)collatz_1.0.1.zip(r-4.6)collatz_1.0.1.zip(r-4.5)
collatz_1.0.1.tgz(r-4.6-any)collatz_1.0.1.tgz(r-4.5-any)
collatz_1.0.1.tar.gz(r-4.7-any)collatz_1.0.1.tar.gz(r-4.6-any)
collatz_1.0.1.tgz(r-4.6-emscripten)
manual.pdf |manual.html
card.svg |card.png
collatz/json (API)

# Install 'collatz' in R:
install.packages('collatz', repos = c('https://skenvy.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/skenvy/collatz/issues

Pkgdown/docs site:https://skenvy.github.io

On CRAN:

Conda:

collatz

6.26 score 7 stars 9 scripts 204 downloads 5 exports 1 dependencies

Last updated from:04ad933f63. Checks:7 NOTE, 2 OK. Indexed: yes.

TargetResultTimeFilesSyslog
linux-devel-x86_64NOTE152
source / vignettesOK193
linux-release-x86_64NOTE149
macos-release-arm64NOTE143
macos-oldrel-arm64NOTE159
windows-develNOTE98
windows-releaseNOTE96
windows-oldrelNOTE77
wasm-releaseOK120

Exports:collatz_functionhailstone_sequencereverse_functionstopping_timetree_graph

Dependencies:gmp

collatz

Rendered fromcollatz.Rmdusingknitr::rmarkdownon May 16 2026.

Last update: 2022-08-27
Started: 2022-08-27

Hailstone of 27+576460752303423488

Rendered fromhailstones_576460752303423488.Rmdusingknitr::rmarkdownon May 16 2026.

Last update: 2022-08-27
Started: 2022-08-27

Hailstone Sequences

Rendered fromhailstones.Rmdusingknitr::rmarkdownon May 16 2026.

Last update: 2022-08-27
Started: 2022-08-27

Tree Graphs

Rendered fromtreegraphs.Rmdusingknitr::rmarkdownon May 16 2026.

Last update: 2022-08-27
Started: 2022-08-27

Readme and manuals

Help Manual

Help pageTopics
Sane Parameter Checkassert_sane_parameterication
Collatzcollatz-package collatz
The Collatz functioncollatz_function
Hailstone Sequencerhailstone_sequence
The "inverse"/"reverse" Collatz functionreverse_function
Stopping Timestopping_time
Stopping Time Terminusstopping_time_terminus
Tree Graphtree_graph