ALalansammarone·Aug 5, 2017Submission
Hilbert: dead simple way to do math on your computer
3 points · Open discussiongogotanaka
hilbert
Python2014–2017
gogotanaka / hilbert
hilbert
:dancers: Implement mathematics.
5Distinct people
7Mentions
0Explicit recommenders
553GitHub stars
What to know before exploring
What it is
:dancers: Implement mathematics.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year7 dated mentions
Observed mentions: 2014-11-18 09:47:36 UTC to 2017-08-05 20:42:10 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2014 | 2014-01-01 00:00:00 UTC | 2015-01-01 00:00:00 UTC | 6 | 0 | 6 |
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
7 sources> It would appear as though the repo owner is no longer accepting new issues (the "Submit new Issue" button is greyed out).
The button on https://github.com/gogotanaka/Hilbert/issues/new is enabled for me now, and was enabled yesterday too. I think you forgot to fill in the title of the issue as well as the body – the button stays grayed out if you don’t have a title.
I posted that issue for you at https://github.com/gogotanaka/Hilbert/issues/69.
In Hilbert: A Latex-like math-oriented programming languageIt would appear as though the repo owner is no longer accepting new issues (the "Submit new Issue" button is greyed out). So, in lieu of submitting a new issue, here is the issue that I would have opened (in Markdown):
Looking through the README, the first thing that made me balk was the fact that the limit of `1/x` as `x->0` is not infinity. The limit doesn't exist! However:
* The limit as x goes to zero from the right of `1/x` is infinity, and
* The limit as x goes to zero from the left of `1/x` is negative infinity.
So, to quickly determine whether or not this was just a documentation issue, I installed Hilbert ([and eventually succeeded](https://github.com/gogotanaka/Hilbert/pull/68 )) and tried to discover the syntax for one-sided limits:
```
Enjoy! -> lim[x->0+] 1/x
Enjoy! ->
```
Hmmm...no output. Okay. Does any output work?
```
Enj
Read the rest
oy! -> 3+2
5
Enjoy! ->
```
Okay, good, we at least have that much... Hmmm...
```
Enjoy! -> lim[x->0^+] 1/x
Enjoy! ->
```
Nope, that's not it, either. Poking at the source code, [it doesn't seem as though one-sided limits are implemented](https://github.com/gogotanaka/Hilbert/blob/1750822d0577e69ab... ).
Well, okay, how about a simpler limit?
```
Enjoy! -> lim[x->0] x+2
Enjoy! ->
```
Uhhh...okay, how about some differentiation?
```
Enjoy! -> d/dx(cos(x))
I'm so sorry, something wrong. Please feel free to report this.
Enjoy! ->
```
This error message is of no use, and I have no idea what's going on, but this language appears to be broken.
It's wrong even in the tests: https://github.com/gogotanaka/Hilbert/blob/master/test/inter...
In Hilbert: A Latex-like math-oriented programming languageThe information on the pretty website is spare. However, there are a few issues which give me pause.
The integral example already given is one. One must wonder what is going on "under the hood" to give such a result. My hypothesis is that Riemann sums are what's going on, and that the integral uses 0 as a sample point. An interesting point is that this is one of the unit tests. https://github.com/gogotanaka/Hilbert/blob/master/test/inter...
Another is the example of lim[x->0] 1/x => oo. This is not true; the limit does not exist. If one said lim[x->0+] => oo there would be a better case. Also a unit test. https://github.com/gogotanaka/Hilbert/blob/master/test/inter...
(1 2 3; 4 5 6) * (1 2 3) => (14 32) is not how matrix multiplication is normally done. ( (1 2 3) would need to be (1; 2; 3).)
All in all, the grammar seems to be q
Read the rest
uite irregular; it seems to be the result of a sequence of wanting to solve one very particular kind of problem (take a limit, differentiate a function, take a sum) and cludging it into the parser.
https://github.com/gogotanaka/Hilbert/blob/master/lib/hilber... has seven exclamation marks in a row. That's amusing... I don't know anything about Ruby, but I feel that it must be a joke.
I made a pull request that fixes that typo: https://github.com/gogotanaka/Hilbert/pull/58
In Hilbert: A Latex-like math-oriented programming languageLink to confirm that the integral should be -1: http://www.wolframalpha.com/input/?i=integral+of+%28log%28x%...
Edit: GitHub Issue filed at https://github.com/gogotanaka/Hilbert/issues/60.
In Hilbert: A Latex-like math-oriented programming language