picomancer

7 ms·

1.
by picomancer 8y ago
It seems like any method for solving this problem could be interpreted in a Bayesian way: At any time, you consider all the different possible distributions each arm could have, and assign each a probability which is how likely you think t
2.
by picomancer 12y ago
Crud. I assumed the left and right side were symmetric and would cancel, but they're not -- the air's moving at different relative velocity on each side.
3.
by picomancer 12y ago
I'm thinking the baseball spinning counterclockwise when viewed from above will curve to the pitcher's right (the same direction shown by Trefil). Basically friction will cause the ball to push air molecules near its surface in it
4.
by picomancer 12y ago
> real numbers. In an open interval like (0, 1), there is no single real number which is less than one but is greater than all other real numbers less than one. The rational numbers are like this too. All the rational numbers between 0 a
5.
by picomancer 12y ago
The sign-exponent-mantissa nature of IEEE format means (basically by design) that you have a much finer resolution near 0 (smaller absolute value) than you do away from 0 (larger absolute value). We're talking about sin(x) with x ~ pi.
6.
by picomancer 12y ago
It's about time. I was just using ffmpeg today, wanted libx264 lossless encoding, noticed the deprecation message and lack of libx264 support in the Ubuntu package, recompiled from source.
7.
by picomancer 12y ago
Wow. This is epic. I totally had this exact idea a few years ago -- that every mathematically possible universe physically exists, with some probability distribution. I was thinking maybe the probability of finding yourself in a given un
8.
by picomancer 12y ago
This comment is mostly speaking to the author of the parent post, who seems to be a founder of prmatch.com [1]. I think OP represents an underserved market -- people who have a great product idea [2] and want to crowdfund, but don't ha
9.
by picomancer 12y ago
The key is a "hook," a goal, a source motivation. Seeing how a particular technology enables new capabilities and applications is a powerful encouragement to learning it, even for professional adult hackers. "Make your own c
10.
by picomancer 12y ago
This is really neat. Somehow I always assumed realloc() copied stuff instead of using the page table. But say you have 4K page table size. You malloc() in turn a 2K object, a 256K object, and another 2K object, ending up with 2K, 256K, 2K
11.
by picomancer 12y ago
TLDR: You can't write the first compiler for a language in the language. However, you can write the second compiler in the language and use the first compiler to compile it. If you already have a compiler in the language you&#x27
12.
Spaghetti code(en.wikipedia.org)
2 points by picomancer 12y ago|0 comments
13.
by picomancer 12y ago
It actually does, if a is an integer.
14.
by picomancer 13y ago
MIT licensed source code: https://github.com/eligrey/FileSaver.js In case it's not clear, this allows you to generate a file from client-side JS, and allow the user to save the generated file without first havin
15.
Saving generated files on the client-side(eligrey.com)
3 points by picomancer 13y ago|1 comments
16.
by picomancer 13y ago
Readers may be familiar with the TI-83 programmable graphing calculator's assembly language functionality (especially those who took high school math classes in the mid-to-late 1990's). The TI-83's only user-writable storage
17.
by picomancer 13y ago
> most people would probably not benefit much from having that additional content added into the high school course It would be great if we could switch from content to teaching actual mathematical reasoning. You can read a famous essay
18.
by picomancer 13y ago
Basic algebra and geometry: Order of operations; simplifying expressions; solving quadratic equations by factoring; finding area and perimeter of shapes; the classic "garden problem" (maximize area of a rectangle given fixed sum
19.
by picomancer 13y ago
> I don’t think becoming a hacker was ever super-expensive compared to many other activities I disagree. In middle school I had a textbook on assembly language; the first chapters used DEBUG (a 16-bit debugger which came with DOS) but l
20.
by picomancer 13y ago
If you've ever programmed in JavaScript -- and most people have, it's the language of the Web -- you will know that it is very easy to accidentally omit the "var" keyword and unintentionally pollute the global namespac
21.
by picomancer 13y ago
The "global" keyword in Python binds a name to the scope of the top level of the enclosing module. The "nonlocal" keyword is a Python 3.x feature which binds a name to the next enclosing scope level. So you would do:
22.
What is "dist-upgrade" and why does it upgrade more than "upgrade"?(askubuntu.com)
1 points by picomancer 13y ago|0 comments
23.
by picomancer 13y ago
Here's a perspective from the founder of a successful bootstrapped software startup that began by developing native OS/2 applications: http://www.stardock.com/stardock/articles/article_sdos2.html I own a
24.
by picomancer 13y ago
For those who aren't familiar, Gitlab is essentially an open-source clone of Github. For those who already use it, this is a good time to upgrade, because multiple security vulnerabilities were recently fixed [1]. (You can upgrade to
25.
by picomancer 13y ago
Here is the checklist for my programming language, foil -- demo available (requires Java plugin) at http://picomancer.com/blog/foil-compiler-tech-preview/ You appear to be advocating a new: [ ] functiona
26.
Bitnami Bi-Weekly Packaging Contest(bitnami.com)
2 points by picomancer 13y ago|0 comments
27.
Volcano raises new island far south of Japan(news.yahoo.com)
2 points by picomancer 13y ago|0 comments
28.
by picomancer 13y ago
Many people have complained about CONFIG_USER_NS missing in Ubuntu [1] [2] [3] [4] [5]. Apparently the reason is that it's not compatible with XFS filesystem until 3.12 [6], and even though nobody uses [7] the XFS filesystem, backwards
29.
Suprmasv is a home for the hacker class(suprmasv.com)
4 points by picomancer 13y ago|1 comments
30.
by picomancer 13y ago
This is actually a number theory problem. You want to have input * A = output * B (1) where A = f1 * f2 (2) B = r1 * r2 * q1 * q2 (3) where q1, q2 are powers of two. Any good elemen

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