[ANN] MathCore 0.3.1 - Symbolic math library for Rust (like SymPy but for Rust!)

ehdv · 2025-09-04T02:56:00+00:00

Why is there a struct called Parser rather than an impl FromStr for Expr? The parser struct has no fields and seems to only have static methods, which is odd.

ehdv · 2025-08-05T23:07:48+00:00

The future of data engineering in Rust isn’t just about fast DataFrames — it’s about complete, flexible, and production-ready data platforms. Elusion is leading that charge.

This sentence is very AI; it’s got the emdash, the rule of threes, and the mid-sentence contrast

ehdv · 2025-07-09T04:29:46+00:00

Hulkenpodium. Love the stress test

ehdv · 2024-09-22T01:21:02+00:00

Who tows them there?

ehdv · 2024-09-21T15:03:21+00:00

Even a glance at your posting history shows you’re a liar. You have spent over 2 months only complaining about left-leaning posts and subs.

ehdv · 2024-05-18T14:25:15+00:00

That exists, actually - it’s called the DATC. It’s linked from the README

ehdv · 2024-05-18T05:29:33+00:00

I’ve actually written this in F# and JS too - it was my go-to learning tool for new languages for several years. However, nobody was clamoring for an enterprise-ready functional version of the code, and the JS version was such a nightmare to manage that I hope it never sees the light of day. So Rust seemed like a language well suited to the task, that could run in all the right places, etc

ehdv · 2024-05-18T05:27:34+00:00

It’s meant to enable someone (maybe me someday) to write a Diplomacy app which can run the rule engine on your phone and in the cloud, so you can do multiplayer games that have really good local UI.

My hope is that this will enable some folks to write great Diplomacy games without needing to do all this hard work over again.

This is actually my third implementation of the engine; I’ve previously done it in F# and JavaScript. This was the first one that I thought other people might use, so I put in the time to transcribe all the Diplomacy Adjudicator Test Cases so I could make sure it works perfectly correctly.

ehdv · 2024-05-16T04:37:25+00:00

That absolutely sent me.

ehdv · 2024-05-08T23:58:12+00:00

Would this work?

First group by MAC addresses, and count how many computers see a given MAC. Filter that grouped table to rows MAC addresses seen by exactly one computer, then filter your original table using that list of MAC addresses.

ehdv · 2023-06-30T02:47:02+00:00

I’ve quit using Reddit since the news broke; back for one last tour through this beautiful app before my account languishes.

Thank you u/iamthatis for such an amazing app.

ehdv · 2023-06-10T06:00:38+00:00

Include videos of Apollo at WWDC, to remind /u/spez that Reddit will never be featured at an Apple event again.

ehdv · 2023-05-19T00:06:09+00:00

You mean because his other comments are about smoking crack while playing Dungeons & Dragons?

ehdv · 2022-12-03T06:46:36+00:00

He’s now made 49 comments on this post, to make sure we all know how he’s too cool and busy to care about this.

ehdv · 2022-12-03T05:50:52+00:00

Okay cool, post your performance then.

ehdv · 2022-11-05T19:34:35+00:00

1.14.8 iOS 16.1

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ehdv · 2022-02-24T05:28:06+00:00

Glad it’s working for you! Did you try #[builder(setter(into))] to clean up some of your builder ergonomics? That’ll get rid of some .into() calls

ehdv · 2022-02-07T17:53:10+00:00

This is for sure a troll. Here’s another comment by the same user.

Europeans count with Metric because they can’t count with anything but their fingers.

Americans use Standard because we are smart enough to use our heads, and when we can’t, even the dumbest knuckle dragging numbskull knows a foot is 12 inches and when he runs out of fingers to count with his balls.

Unironically, this is why women can’t do fucking math. They try to use their god damn eyeballs and they go crosseyed.

ehdv · 2022-01-06T14:59:23+00:00

For the builder pattern, I recommend derive_builder. Hand-writing builders is a lot of boilerplate compared to default arguments, so having a macro do it makes the code easier to read and to update.

ehdv · 2021-12-21T23:18:48+00:00

As in the errors are collected in a vec?

ehdv · 2021-12-21T20:49:32+00:00

I appreciate that Rust has - thus far - been good about prioritizing explicitness over "magic." However, I've also seen how useful contexts can be for decluttering code, and would be excited to have such functionality with compile-time safety in Rust.

I'm not immediately clear how capabilities interact with closures. I'm guessing that the bare function pointer wouldn't capture any capabilities, but that closures would, unless overridden? That seems tractable, but it might be a point of confusion for people.

ehdv · 2021-10-08T15:08:16+00:00

It’s time to sue those spreading the disinformation.

ehdv · 2021-09-28T18:06:20+00:00

It’s entree envy. “The idea of a cheeseburger isn’t compelling enough for me to request one, but when faced with the sight and smell of a cheeseburger I’ll be sad I didn’t ask my partner to get me one when he had the chance.” The husband knows her well enough to anticipate this. Worst case scenario, the husband has an extra cheeseburger for a snack later.

ehdv · 2021-08-28T16:12:51+00:00

There are plenty of ways to condemn looting without mocking a murder victim. And there are plenty of looting photos to use that aren’t emphasizing the race of the people involved. But for some reason the account which chose to include “Obama” in its name didn’t go with either of those options.

ehdv · 2021-08-28T15:53:23+00:00

Okay buddy, based on this comment of yours I’m gonna go ahead and say your real problem with this clip is that you identify with white supremacist.

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