Hacker News: hexane360

New comment by hexane360 in "Python as a second language empathy (2018)"

hexane360 — Sun, 02 Mar 2025 02:32:50 +0000

Well, except in the case of variable shadowing.

New comment by hexane360 in "Build your own SQLite, Part 4: reading tables metadata"

hexane360 — Tue, 04 Feb 2025 18:04:52 +0000

Signs we may be reaching the Plateau of Productivity

New comment by hexane360 in "Entropy of a Large Language Model output"

hexane360 — Mon, 13 Jan 2025 20:09:43 +0000

Fig. 8, where the model becomes poorly calibrated in terms of text prediction (Answers are "flattened" so that many answers appear equally probable, but below the best answer)

New comment by hexane360 in "One of my papers got declined today"

hexane360 — Thu, 02 Jan 2025 04:06:12 +0000

In many subfields, the submitter isn't even attempted to be hidden from the reviewers. Usually, even the reviewers can be guessed with high accuracy by the submitters

New comment by hexane360 in "Energy is frame-dependent, infrastructure of energy is frame-independent (2020)"

hexane360 — Sat, 23 Nov 2024 23:59:15 +0000

It's MathJax, do you have javascript enabled?

New comment by hexane360 in "Scientific computing with confidence using typed dimensions"

hexane360 — Thu, 21 Nov 2024 22:30:54 +0000

Note that Mathematica units impose a very large runtime penalty, making them unsuitable for a lot of applications

New comment by hexane360 in "Unusual Raku Features"

hexane360 — Wed, 13 Nov 2024 01:38:20 +0000

It's also quite similar to Thread and MapThread in Mathematica

New comment by hexane360 in "Approximating sum types in Python with Pydantic"

hexane360 — Thu, 15 Aug 2024 18:41:04 +0000

As an alternative to Pydantic, check out the wonderful mashumaro: https://github.com/Fatal1ty/mashumaro

I've also played around with writing my own dataclass/data conversion library: https://github.com/hexane360/pane

New comment by hexane360 in "Boeing Starliner launches first crewed mission"

hexane360 — Wed, 05 Jun 2024 18:55:19 +0000

Also worth noting that test pilots of experimental aircraft generally wear parachutes, at least for higher risk tests. This includes tests of commercial aircraft.

New comment by hexane360 in "Generate an OpenSCAD case template from a KiCAD PCB"

hexane360 — Mon, 03 Jun 2024 15:19:50 +0000

This plus make a lot of sketches describing what each variable is physically, and use geometry to derive dependent dimensions.

Libraries like BOSL2 help with placement/attachment of features: https://github.com/BelfrySCAD/BOSL2

New comment by hexane360 in "ICC prosecutor seeks arrest warrants against Sinwar and Netanyahu for war crimes"

hexane360 — Mon, 20 May 2024 21:13:18 +0000

H.W. Bush brought Israel in line: https://www.huffpost.com/entry/george-hw-bush-israel-palesti...

Reagan did it with a single phone call: https://www.nytimes.com/1982/08/13/world/reagan-demands-end-...

New comment by hexane360 in "Algebraic Data Types for C99"

hexane360 — Fri, 10 May 2024 21:33:37 +0000

... no? Unless you're referring to null as a bottom type, then that doesn't hold. Are you describing some property of a specific language?

New comment by hexane360 in "Algebraic Data Types for C99"

hexane360 — Fri, 10 May 2024 20:02:08 +0000

Only if you're designing both functions ahead of time. In other words, it's not composable.

New comment by hexane360 in "Algebraic Data Types for C99"

hexane360 — Thu, 09 May 2024 17:31:55 +0000

This often comes up when writing a function which returns a wrapper over a generic type (like Option). If your Option type is T | null, then there's no way to distinguish between a null returned by the function or a null that is part of T.

As a concrete example, consider a map with a method get(key: K) -> Option. How do you tell the difference between a missing key and a key which contains `null` as a value?

New comment by hexane360 in "Probing electron spin states at much higher resolution and efficiency"

hexane360 — Tue, 30 Apr 2024 20:06:05 +0000

There's a quote from Michelson that "the future truths of physical science are to be looked for in the sixth place of decimals". Many misinterpret this to be a statement that 'there's nothing new to be discovered', but his actual point was that discovering new science requires rigorously searching out and understanding even small deviations in measurements.

Here's the full quote:

"While it is never safe to affirm that the future of Physical Science has no marvels in store even more astonishing than those of the past, it seems probable that most of the grand underlying principles have been firmly established and that further advances are to be sought chiefly in the rigorous application of these principles to all the phenomena which come under our notice. It is here that the science of measurement shows its importance — where quantitative work is more to be desired than qualitative work. An eminent physicist remarked that the future truths of physical science are to be looked for in the sixth place of decimals."

New comment by hexane360 in "Ford Mustang Mach-E using BlueCruise at time of crash: NTSB"

hexane360 — Sun, 14 Apr 2024 15:58:12 +0000

On the other hand, I saw this just this morning: https://x.com/RealDanODowd/status/1778224756220940585

New comment by hexane360 in "Ford Mustang Mach-E using BlueCruise at time of crash: NTSB"

hexane360 — Sun, 14 Apr 2024 15:43:42 +0000

No, because the engine is also insignificant compared to the brakes. A SUV might have brakes (briefly) capable of 900 HP of power absorption

New comment by hexane360 in "Abusing Conda's Turing-Complete YAML Comments"

hexane360 — Mon, 26 Feb 2024 03:48:49 +0000

Meanwhile, there's still no support for dependency specifiers/environment markers (PEP 508/PEP 345) in environment.yml files, and the documentation is VERY sparse about what is supported: https://conda.io/projects/conda/en/latest/user-guide/tasks/m...

At least they support ~=3.9 and >=1,<3 comparisons (although this is undocumented as far as I can tell.

New comment by hexane360 in "PID Controllers in Unity3D (2021)"

hexane360 — Tue, 16 Jan 2024 17:09:16 +0000

Does that rule-of-thumb assume specific units/value ranges for the input and output signals?

New comment by hexane360 in "The case of the vector with an impossibly large size"

hexane360 — Fri, 12 Jan 2024 16:11:56 +0000

See also Windows setting menus. People see this as a flaw, but I much prefer that to breaking existing functionality for the sake of a redesign. Make a new interface for simple usecases, but keep the old one around just in case.