chacha21

5 ms·

1.
by chacha21 7mo ago
A study about black holes that highlights mathematical errors from the very beginning, already mentioned by some scientists in the past, but never really considered seriously. Another model is proposed to describe the cosmologic objects cur
2.
by chacha21 1y ago
Chalk also supports uncertainty : https://chachatelier.fr/chalk/chalk-features.php (combined with arbitrary long numbers and interval arithmetic)
3.
by chacha21 2y ago
I share a lot of thoughts with that, and built my own calculator, too A calculator that gives right instead of wrong answers https://chachatelier.fr/chalk/chalk-home.php I tried to explain what was going on https:&#x2
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by chacha21 4y ago
Desktop calculators are the best. Shame on computers ! https://chachatelier.fr/chalk/article/chalk.html#toc-14
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by chacha21 4y ago
Most people didn't understand that my goal was not to benchmark all existing calculator apps. It is on purpose that I did not mention all "pretty good" softwares, because I cannot know them all. The article I wrote wants to m
6.
by chacha21 4y ago
An opportunity to post again my thoughts about software calculators ! https://chachatelier.fr/chalk/article/chalk.html
7.
by chacha21 5y ago
Let's say that : if you do not use arithmetic interval, at some point your floating point computations will be wrong and misleading if you do not carry information about how much bits are garbage. Chalk does that.
8.
by chacha21 5y ago
You can achieve that, this is a preference of Chalk about what should be the next input
9.
by chacha21 5y ago
Just a zip on the web page
10.
by chacha21 5y ago
RPN is just an option (provided by Chalk). The "minimalist" GUI is just the introduction of the full article. You have to reach < https://chachatelier.fr/chalk/article/chalk.html#toc-36 > to go deep
11.
by chacha21 5y ago
Chalk is kind of robust, I am surprise you hit a bug at first use. Go to < https://chachatelier.fr/chalk/chalk-contact.php > for bug reports
12.
by chacha21 5y ago
Thanks ! There were so many things to say that I was afraid nobody would read up to the end. GUI is only the visible part of the iceberg. Number representation (to keep exact values), accuracy, interval arithmetics... are hard to introduce
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by chacha21 5y ago
Chalk has an option to use RPN
14.
by chacha21 5y ago
Thanks, I have added some more "mobile compliant" CSS styles.
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by chacha21 5y ago
Even with numbers only, it can still be useful to know how wrong the result is. Chalk keeps track of every inaccuracy when dealing with decimal numbers.
16.
by chacha21 5y ago
I don't use Emacs, but I feel that people should just have access to a decent calculator without digging developer forums. As good as Emacs Calc is, we can admit that it's unlikely to be seen as an easy-to-find lightweight tool.
17.
by chacha21 5y ago
I agree, but as good as it is, this is not where people would like to find a good calculator.
18.
by chacha21 5y ago
Thanks to Show HN I will be given tons of links to softwares I would never have found by myself :-)
19.
by chacha21 5y ago
You know what ? I was not even aware that it would work ! (Am I the only one to discover that just now ? I am not using Spotlight very often) It's kind of cool, but I can still find many grievances about the way it's done :-)
20.
by chacha21 5y ago
We will somewhat disagree, partly because I can't help using calculators as a scientist, so my opinion is particularly biased. However, I don't like the trend to hide everything that looks technical. On the long run, letting peopl
21.
by chacha21 5y ago
Quickfix : I have added a button to hide the TOC. Not sure if it fits mobile screens anyway.
22.
by chacha21 5y ago
Even if it proves me wrong, it still makes me happy that some work is done on this tool. (I will fix the article)
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by chacha21 5y ago
Hi, >I wonder if the author considered an input method where keypresses translate directly into a rendered equation? Personally, I don't like such systems, because I always end up moving the cursor up/down/left/right
24.
by chacha21 5y ago
https://chachatelier.fr/chalk/article/chalk.html
25.
Show HN: All desktop software calculators are wrong, so I had to build my own
286 points by chacha21 5y ago|162 comments
26.
by chacha21 5y ago
Funny enough : the main problem of the previous layout derived from a large CSS-overflow of numbers with a large number of digits, that I finally fixed with "word-break:break-all". Considering the topic of the article, large numbe
27.
by chacha21 5y ago
I am not a big fan of Webview. But Javascript for pretty print was the only way, so I had no choice.
28.
by chacha21 5y ago
I hate CSS, I will have to spend hours trying to figure out that. In good old days, I would have used a table or an iframe, but that's bad practice I guess.
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All desktop calculators are wrong, so I had to build my own(chachatelier.fr)
16 points by chacha21 5y ago|8 comments