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sritchie

HN member
Joined
Thu, Jun 02, 2011, 12:10 AM UTC
HN karma
1,029
Public activity
119 items

About sritchie

I hack Clojure and Scala. Formerly Twitter, formerly Stripe. Founder of PaddleGuru and RacehubHQ.

Blog: https://samritchie.io

[ my public key: https://keybase.io/sritchie; my proof: https://keybase.io/sritchie/sigs/_TS462cmjfImFbiWim_Fn5sGsIBqvrf20BpHEYUnNt0 ]

Recent public activity

  1. comment
    Comment #47469211

    Hahah, I just have to reply and say I loved the original comment and was happy for the laugh. Obviously this is the answer to the riddle of > Given a 3-liter container and a 5-lite…

  2. story
  3. comment
    Comment #45539745

    (Parent was being sarcastic)

  4. comment
    Comment #43598354

    I always remember it with “g” for ground and “c” for ceiling… haha but I do like the mites and tites one too in a neighbor comment :)

  5. comment
    Comment #40052848

    I think the idea is that you performed the exercise to create stress that you want your body to respond to by getting stronger / more aerobically fit etc in some way. So by icing, …

  6. comment
    Comment #39562967

    Thank you for the kind words :)

  7. comment
    Comment #39554986

    Not MIT scheme, and there are no proper ports of scmutils to other Scheme dialects that I know of.

  8. comment
    Comment #39554975

    That note in the docs is from a time when Emmy only ran on the JVM. Now Emmy runs in JS in a browser (see my top level comment for demo links) which I would argue is even easier. A…

  9. comment
    Comment #39551241

    Hey Taylor, thanks for posting these!! I'm still working on the airplane... it's a Vans RV-10, and now out at the hangar and maybe 98% complete, one more full-time month of work th…

  10. comment
    Comment #39551229

    Co-author of Emmy here, happy to answer any questions! Point well taken from tonyarkles that on-boarding and docs need work. My big goals for this project were: 1. finish a 100% po…

  11. comment
    Comment #39227749

    I used tons of lash splices while building an RV-10 airplane but didn’t know the name until now. Thank you!

  12. comment
    Comment #37403751

    I have reverse-mode (purely functional reverse mode at that!) sitting in a branch, and will get this going at some point soon. Even more fun will be compilation down to XLA, like J…

  13. comment
    Comment #37400615

    Yes, if you get to automatic differentiation by overloading your operators to also take a “differential” type, you can further overload them to do symbolic arithmetic and then symb…

  14. comment
    Comment #37397890

    Of course! And referencing your other comment, during the ~2 year period I've been working on Emmy (on top of work by Colin Smith), I was keen to make the implementation more acces…

  15. comment
    Comment #37396679

    What would you build / create / write if you had a web-enabled build of SICM (well, scmutils I guess) in hand? I'd love to hear more about your thoughts on how to build a community…

  16. comment
    Comment #37396663

    It's fully rejuvenated in Clojure as "Emmy", with Sussman's support and a bunch of 2D and 3D graphing extensions. See Emmy-Viewers: https://emmy-viewers.mentat.org/ and Emmy: https…

  17. comment
    Comment #36383814

    Thanks for the Emmy shout-out! Clerk has been fantastic for rendering 2D and 3D... I just finished a 3D graphics API and am frankly blown away at how great Clerk made this experien…

  18. comment
    Comment #36007827

    I covered this in a few of the comments above... the project was initially completely aimed at the R2R book, and I expect to get back to it. I'll add more background to the project…

  19. comment
    Comment #36007821

    Thank you! I had "dependencies between notebooks" and "collaborative mode"... the first one's covered here but I still don't know how to handle some Google Docs-style flow on these…

  20. comment
    Comment #36007808

    It's not just you! The last thing I want is a WTF from Penrose... This was just an oversight from me trying to cram in too much writing, and I'll fix it tonight once the kids are d…

  21. comment
    Comment #36006936

    This is great feedback, and of course you're right. I'll flesh out the index and make sure this is clear right away.

  22. comment
    Comment #36006381

    I think you make a great point about adding even further abstraction. I was inspired by Michael Nielsen's idea of "Discovery Fiction"[0], and porting the Sussman library gave me th…

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  24. comment
    Comment #35815283

    No, of course you’re right to be! I owe myself another lap through this material and this is a good push…

  25. comment
    Comment #35806068

    Sorry, of course you're right on "Secondly". The right construction is ω, ω∪{ω}, ω∪{ω}∪{ω∪{ω}}... For the first point, I went through the book long enough ago that I can't rebuild …