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StevenXC

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The Lurch Project: a word processor designed to check the reasoning in proofs

lurchmath.github.io
1 points·by StevenXC·2 anni fa·0 comments

Let's Split Up, Gang

split.clontz.org
1 points·by StevenXC·3 anni fa·0 comments

Is there anyone among us who can identify a certain SUS space?

math.stackexchange.com
2 points·by StevenXC·3 anni fa·0 comments

comments

StevenXC
·anno scorso·discuss
It's very unclear to me how you seem to expect medical research to be done in the cloud. Overhead is crucial to create and maintain research infrastructure necessary to advance medicine and science.
StevenXC
·2 anni fa·discuss
I wrote a small novel but lost it due to user error, so here's a hot take with much less nuance from a college math professor. Just like calculators meant we needed and could pivot the skills we ask our students to learn, AI will also shift the paradigm. But unlike calculators, which are very good at what they're meant to do, AI produces BS in the academic sense [0] and if used uncritically frequently produces work that's just nonsense. So I tell students I don't care so much if they use it, but that the students who do tend to end up looking foolish.

[0]: https://link.springer.com/article/10.1007/s10676-024-09775-5
StevenXC
·2 anni fa·discuss
Algebraically, where | denotes concatenation, and z is a string of 0s:

x = y | 1 | z

-x = ~x + 1

-x = (~y | 0 | ~z) + 1

-x = ~y | 1 | z

x & -x = (y & ~y) | (1 & 1) | (z & z)

x & -x = 0 | 1 | z
StevenXC
·2 anni fa·discuss
As an math educator, I think there's a huge flaw in this study. The investigators failed to follow up to see why the mistake was made. They leap to assuming the player is trying to "deny the antecedent", but I think there's a much simpler explanation: the players aren't reading the instructions carefully.

There's two reading errors I would expect someone to make given this experiment:

1. The instructions that each card has exactly one letter and exactly one number are before the big cards. I bet many players just skipped that instruction.

2. Mistaking the P→Q as P←→Q smacks more of a reading comprehension error than a logical error.

Disclosure: I made both mistakes. (-:
StevenXC
·2 anni fa·discuss
the kids are alright. Reminds me of when I organized a real life version of Pac-Man on the quad in 2006, inspired by this game ran on the streets of Manhattan in 2004. https://www.pacmanhattan.com/
StevenXC
·2 anni fa·discuss
It's just a little spark of inspiration.
StevenXC
·2 anni fa·discuss
3.0 has a "bug" that makes it risky to use materials without very careful attribution:

https://doctorow.medium.com/a-bug-in-early-creative-commons-...
StevenXC
·2 anni fa·discuss
Like most inequities, those who are in the benefiting group frequently don't realize that privilege.
StevenXC
·2 anni fa·discuss
Nice to see JRMF trending on HN. JRMF puzzles and festivals are a great way to engage general audiences of grade school students in mathematical inquiry and problem solving.
StevenXC
·2 anni fa·discuss
I like the phrasing used by https://houseofgraphs.org/ — while there are an infinite number of mathematical objects in any category, there are only "a few thousand that can be considered really interesting."
StevenXC
·2 anni fa·discuss
Those interested in databases of mathematical objects may want to check out https://mathbases.org
StevenXC
·2 anni fa·discuss
Literally Doug Bowser.
StevenXC
·2 anni fa·discuss
Calculus 1 instructors, everywhere, screaming

> TikTok is finally concave down
StevenXC
·2 anni fa·discuss
https://Topology.pi-base.org (a database of certain mathematical objects) started as a wiki, but transitioned to using GitHub pull requests and custom software to support automated deduction.

Folks interested in open collaborative math content may find these interesting:

- https://code4math.org/ - https://mathbases.org/
StevenXC
·2 anni fa·discuss
SymPy is open source, mathematica is not.

Additionally, SageMath (which depends on SymPy) is the more comparable product (and is open source).
StevenXC
·2 anni fa·discuss
A major Boeing campus is in Huntsville, AL, which is going to affect that average for sure.
StevenXC
·2 anni fa·discuss
They didn't make a business using an open source project; they turned their open source project into a monetized non open source project.
StevenXC
·2 anni fa·discuss
I've seen stranger things.
StevenXC
·2 anni fa·discuss
Same story here. It's a shame.
StevenXC
·2 anni fa·discuss
Also relevant:

https://en.m.wikipedia.org/wiki/Topological_data_analysis