{"version":"https://jsonfeed.org/version/1","title":"Micro.blog - Jonathan Carroll","home_page_url":"https://micro.blog","feed_url":"https://micro.blog/posts/jonocarroll","_microblog":{"about":"https://micro.blog/about/api","id":"106363","username":"jonocarroll","bio":"Hi! I'm Jonathan Carroll, a data scientist / software developer / former physicist / computation biologist in Adelaide, South Australia.\n\nThis blog hosts my shorter / less structured / more informal posts - longer than a tweet, but not things I feel are polished enough for my [main blog](https://jcarroll.com.au).\n\nFeel free to comment or reply - these posts are usually starting points for bigger discussions. I'll also cross-post links to these on [Twitter](https://twitter.com/carroll_jono) and [Mastodon](https://fosstodon.org/@jonocarroll).","pronouns":"","is_following":false,"is_you":false,"following_count":1,"discover_count":0},"author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://avatars.micro.blog/avatars/2022/106363.jpg"},"items":[{"id":"80975264","content_html":"

Books I Read in 2025: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2025/12/30/books-i-read-in.html","date_published":"2025-12-30T01:36:30+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2025-12-30 01:36","date_timestamp":1767058590,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":[]}},{"id":"75190764","content_html":"

Aaaaand they're off! jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2025/10/07/aaaaand-theyre-off.html","date_published":"2025-10-07T05:31:00+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2025-10-07 05:31","date_timestamp":1759815060,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":true,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/115331477953312615"]}},{"id":"71205322","content_html":"

Nth roots of unity: jcarroll.xyz

","summary":"Calculating the nth roots of unity in R and Julia","url":"https://jcarroll.xyz/2025/08/14/nth-roots-of-unity.html","date_published":"2025-08-14T03:59:42+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2025-08-14 03:59","date_timestamp":1755143982,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/115025116582042879"]}},{"id":"49680673","content_html":"

Quick Note: Functions in Haskell: jcarroll.xyz

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Bringing type checking to R: jcarroll.xyz

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Leap Years with GCD in various langauges: jcarroll.xyz

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R function call overhead: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2024/08/04/r-function-call.html","date_published":"2024-08-04T07:31:30+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2024-08-04 07:31","date_timestamp":1722756690,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/112902582645407485"]}},{"id":"42650105","content_html":"

Book review: Data Analysis with AI and R: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2024/08/01/book-review-data.html","date_published":"2024-07-31T23:52:24+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2024-07-31 23:52","date_timestamp":1722469944,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/112883790409744774"]}},{"id":"38978712","content_html":"

Enums in R: jcarroll.xyz

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How do you do personal knowledge management? jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2024/06/01/how-do-you.html","date_published":"2024-06-01T05:27:26+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2024-06-01 05:27","date_timestamp":1717219646,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/112539706838421814"]}},{"id":"36891019","content_html":"

On content creation motivation: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2024/05/06/on-content-creation.html","date_published":"2024-05-05T23:48:06+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2024-05-05 23:48","date_timestamp":1714952886,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/112391154007259573"]}},{"id":"33539176","content_html":"

Fuzzy Grouping: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2024/03/15/fuzzy-grouping.html","date_published":"2024-03-15T03:21:32+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2024-03-15 03:21","date_timestamp":1710472892,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/112097551623620182"]}},{"id":"30765866","content_html":"

Friends, Romans, Countrymen, lend me your debuggers: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2024/02/10/friends-romans-countrymen.html","date_published":"2024-02-10T06:27:10+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2024-02-10 06:27","date_timestamp":1707546430,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/111905763278399812"]}},{"id":"26453929","content_html":"

Breaking down squared digits in (Dyalog) APL: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/11/16/breaking-down-squared.html","date_published":"2023-11-15T23:47:56+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-11-15 23:47","date_timestamp":1700092076,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/111417234409474064"]}},{"id":"26187871","content_html":"

Breaking down fizzbuzz in (Dyalog) APL: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/11/10/breaking-down-fizzbuzz.html","date_published":"2023-11-10T11:49:05+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-11-10 11:49","date_timestamp":1699616945,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/111386096621257287"]}},{"id":"20464837","content_html":"

Filtering Vectors: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/07/03/filtering-vectors.html","date_published":"2023-07-03T03:48:59+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-07-03 03:48","date_timestamp":1688356139,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":[]}},{"id":"19966595","content_html":"

Around the web 2023W24: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/06/14/around-the-web.html","date_published":"2023-06-16T03:50:20+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-06-16 03:50","date_timestamp":1686887420,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/110551858460970515"]}},{"id":"19054401","content_html":"

FizzBuzz without an if: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/05/12/fizzbuzz-without-an.html","date_published":"2023-05-12T06:41:17+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-05-12 06:41","date_timestamp":1683873677,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/110354345455917673"]}},{"id":"18327800","content_html":"

Finished reading: Bullshit Jobs by David Graeber 📚: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/04/12/finished-reading-bullshit.html","date_published":"2023-04-12T00:40:58+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-04-12 00:40","date_timestamp":1681260058,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/110183059383299407"]}},{"id":"18327279","content_html":"

Finished reading: Soonish by Kelly and Zach Weinersmith 📚: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/04/12/finished-reading-soonish.html","date_published":"2023-04-12T00:10:51+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-04-12 00:10","date_timestamp":1681258251,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/110182944763361972"]}},{"id":"18327181","content_html":"

Finished reading: Version Zero by David Yoon 📚: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/04/12/finished-reading-version.html","date_published":"2023-04-12T00:02:53+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-04-12 00:02","date_timestamp":1681257773,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/110182909589206005"]}},{"id":"17607902","content_html":"

Finished reading: Eastern Standard Tribe by Cory Doctorow 📚: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/03/12/finished-reading-eastern.html","date_published":"2023-03-12T03:50:32+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-03-12 03:50","date_timestamp":1678593032,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/110008273304113738"]}},{"id":"17607717","content_html":"

Finished reading: 500 Chess Questions Answered by Andrew Soltis 📚: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/03/12/finished-reading-chess.html","date_published":"2023-03-12T03:39:11+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-03-12 03:39","date_timestamp":1678592351,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/110008230973951302"]}},{"id":"17445922","content_html":"

Finished reading: The Apocalypse Seven by Gene Doucette 📚: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/03/05/220456.html","date_published":"2023-03-05T11:34:56+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-03-05 11:34","date_timestamp":1678016096,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/109970462992834471"]}},{"id":"17445811","content_html":"

Finished reading: The Phoenix Project by Gene Kim 📚: jcarroll.xyz

","summary":"","url":"https://jcarroll.xyz/2023/03/05/215624.html","date_published":"2023-03-05T11:26:24+00:00","author":{"name":"Jonathan Carroll","url":"https://jcarroll.xyz","avatar":"https://cdn.micro.blog/photos/96/https%3A%2F%2Favatars.micro.blog%2Favatars%2F2022%2F106363.jpg","_microblog":{"username":"jonocarroll"}},"_microblog":{"date_relative":"2023-03-05 11:26","date_timestamp":1678015584,"is_favorite":false,"is_bookmark":false,"is_deletable":false,"is_conversation":false,"is_linkpost":true,"is_mention":false,"note":"","syndication":["https://fosstodon.org/@jonocarroll/109970429530951822"]}}]}