{"generator":"GNU social 2.0.2-dev","title":"Conversation","totalItems":1,"items":[{"actor":{"id":"https:\/\/mastodon.social\/users\/hannorein","displayName":"Hanno Rein","status_net":{"avatarLinks":[{"url":"https:\/\/gnusocial.jp\/avatar\/297401-original-tmp20241118004232.webp","rel":"avatar","type":"image\/webp","width":400,"height":400},{"url":"https:\/\/gnusocial.jp\/avatar\/297401-96-20241118004232.webp","rel":"avatar","type":"image\/webp","width":96,"height":96},{"url":"https:\/\/gnusocial.jp\/avatar\/297401-48-20241118004232.webp","rel":"avatar","type":"image\/webp","width":48,"height":48},{"url":"https:\/\/gnusocial.jp\/avatar\/297401-24-20241118004232.webp","rel":"avatar","type":"image\/webp","width":24,"height":24}],"profile_info":{"local_id":"297401"}},"image":{"url":"https:\/\/gnusocial.jp\/avatar\/297401-96-20241118004232.webp","rel":"avatar","type":"image\/webp","width":96,"height":96},"objectType":"person","summary":"#Astrophysics Professor at the University of #Toronto, Minor Planet 12249, #UTSC, #UofT, developer of the several #iOS apps, #pilot, #cycling, #climbing, #running, #Egyptology, #woodworking, #astrodon.","url":"https:\/\/mastodon.social\/@hannorein","portablecontacts_net":{"preferredUsername":"hannorein","displayName":"Hanno Rein","note":"#Astrophysics Professor at the University of #Toronto, Minor Planet 12249, #UTSC, #UofT, developer of the several #iOS apps, #pilot, #cycling, #climbing, #running, #Egyptology, #woodworking, #astrodon."}},"content":"<p>I'm working on an update that improves how one can access particles in my REBOUND N-body code. The particles are stored in an array, but their position is not guaranteed to stay the same throughout a simulation. So pointers or indices don't always work. Ideally I'd like the refer to a particle with a string. I want to make it both efficient and have a nice syntax in both c and the python wrappers. So it's tricky. And the devil is in the detail...<\/p>","generator":{"id":"tag:gnusocial.jp,2026-08-02:notice-source:ActivityPub","objectType":"application","status_net":{"source_code":"ActivityPub"}},"id":"https:\/\/mastodon.social\/users\/hannorein\/statuses\/116081240154051828","object":{"id":"https:\/\/mastodon.social\/users\/hannorein\/statuses\/116081240154051828","objectType":"note","content":"<p>I'm working on an update that improves how one can access particles in my REBOUND N-body code. The particles are stored in an array, but their position is not guaranteed to stay the same throughout a simulation. So pointers or indices don't always work. Ideally I'd like the refer to a particle with a string. I want to make it both efficient and have a nice syntax in both c and the python wrappers. So it's tricky. And the devil is in the detail...<\/p>","url":"https:\/\/mastodon.social\/@hannorein\/116081240154051828","status_net":{"notice_id":null}},"to":[{"objectType":"http:\/\/activitystrea.ms\/schema\/1.0\/collection","id":"http:\/\/activityschema.org\/collection\/public"}],"status_net":{"conversation":"tag:gnusocial.jp,2026-02-16:objectType=thread:nonce=e57d7b9c3c170d68","notice_info":{"local_id":"12135841","source":"ActivityPub"}},"published":"2026-02-16T17:08:25+00:00","provider":{"objectType":"service","displayName":"GNU social JP","url":"https:\/\/gnusocial.jp\/"},"verb":"post","url":"https:\/\/mastodon.social\/@hannorein\/116081240154051828"}],"links":[{"url":"https:\/\/gnusocial.jp\/conversation\/6159953","rel":"alternate","type":"text\/html"}]}