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Viewing profile — mferraro89

mferraro89

HN member
Joined
Tue, Jan 19, 2021, 2:35 AM UTC
HN karma
640
Public activity
26 items

About mferraro89

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Recent public activity

  1. story
  2. story
  3. comment
    Comment #29097411

    Did this article at some point give up and jump straight into something too difficult?

  4. comment
    Comment #29097377

    ha, thank you for your honest feedback. My intended audience is not PhDs or math majors, it is high school physics teachers, practicing engineers, programmers, precocious high scho…

  5. comment
    Comment #29097177

    thanks! the 3blue1brown website has some great written content that you may enjoy: https://www.3blue1brown.com/#lessons

  6. comment
    Comment #29097154

    thank you! It took a whole month to get the 3D illustrations working well.

  7. comment
    Comment #29097145

    why? too clickbaity?

  8. comment
    Comment #29097112

    Hi. I wrote whole section on the history of GA and what happened and why it isn't already the norm, but I chose to remove it because the article is already far too long, and I don'…

  9. comment
    Comment #29097048

    hey, if you have time to detail those mistakes I'd be happy to fix them in the text. Can you email me at mattferraro.dev@gmail.com

  10. comment
    Comment #29097033

    author here. I was mistaken about the 5 degrees of freedom bit. Bivectors have three. I'll fix the text tonight. I'm sorry you wasted ten minutes on my nonsense.

  11. comment
    Comment #29097001

    Yes, a bivector has 3 degrees of freedom. I was mistaken when I wrote 5. I'll fix the text tonight.

  12. comment
    Comment #29096989

    Author here: I was wrong about the 5 degrees of freedom thing. A bivector has 3 degrees of freedom. I'll correct the text tonight.

  13. comment
    Comment #28292059

    yep that paper is extremely impressive! I would love to implement that approach as well, but it is much more computationally expensive. In the Q&A after a talk from that paper's au…

  14. comment
    Comment #28291423

    Author here. At my day job I spend lots of hours debugging messy React code! The key is to have side projects too :)

  15. comment
    Comment #28291410

    yep I think you're exactly right, as evidenced by the fringes.

  16. comment
    Comment #28291395

    Author here. That's a fantastic question! I think you're right that a better solution would include adding curvature to the individual "pixels" in the lens mesh. Unfortunately I do…

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    Comment #27752298

    You are correct! The simulation as written does not handle the no slip condition. The simulated "air" is inviscid and irrotational. You would need to tackle a few more things in or…

  19. comment
    Comment #27751398

    Thanks for calling this out, I thought it might cause confusion. Matrices are super weird objects because they don't fit nicely into the {scalar, vector, function, operator} classe…

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    Comment #25842553

    thanks you're right about the year! I'll fix that in the next update

  22. comment
    Comment #25842544

    thank you for your feedback! I will incorporate all of this into my next draft!

  23. comment
    Comment #25830226

    Very cool! A modern analogue might be LinuxCNC, which runs on old PCs in a realtime manner, generating pulses and sending them out the parallel port, or sending commands over ether…

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    Comment #25830079

    haha no I'm not from Vancouver but I do love Canada. Living in Northern California.

  25. comment
    Comment #25830061

    OP here: Teknic Clearpath servos are considered good value and come in lots of different sizes/price points. Wiring them up could not be simpler, but know that you need a windows c…