Search found 84 matches

by D-503
Sun Jul 20, 2014 11:08 am UTC
Forum: Science
Topic: Why is cosmological inflation necessary?
Replies: 15
Views: 4027

Re: Why is cosmological inflation necessary?

Making the state space converge is a compelling feature. However, I still wonder if there could be a simpler theory that achieves the same thing. What if all elementary particles shrink at a constant proportional rate (e.g. they half in size every billion years) causing space to expand exponentially...
by D-503
Sat Jul 05, 2014 5:54 am UTC
Forum: Science
Topic: Why is cosmological inflation necessary?
Replies: 15
Views: 4027

Why is cosmological inflation necessary?

I'm skeptical of the theory of inflation. The universe suddenly expanding by several orders of magnitude then stopping a fraction of a second later raises more questions than it answers to my mind. I've read that inflation accounts for the homogeneity and isotropy of the observable universe, similar...
by D-503
Mon Apr 21, 2014 11:50 am UTC
Forum: Science
Topic: Optical telescope arrays
Replies: 3
Views: 1262

Optical telescope arrays

Are there optical telescope arrays as large as radio telescope arrays? As far as I can tell there isn't, so why not? And is the size of the array a limiting factor for the resolution? Would we be able to see further with an orbiting array of telescopes?
by D-503
Sun Feb 16, 2014 3:08 am UTC
Forum: Language/Linguistics
Topic: 中文 Garden - Chinese character study game
Replies: 10
Views: 6026

Re: 中文 Garden - Chinese character study game

I just finished launching public releases of the game on the Google Play Store and Apple App Store. Special thanks to platypusmarket and drego642 for their feedback.
by D-503
Thu Feb 13, 2014 6:38 am UTC
Forum: Computer Science
Topic: fuzzy match confidence w/ multiple attributes
Replies: 4
Views: 4671

Re: fuzzy match confidence w/ multiple attributes

Fuzzy matching seems like a heuristic approach to me since it's based on the assumption that if some form of string distance (e.g. Levenschtein) is small then the strings are the same. It fails in a lot of places (Sam and Sammy has a larger lev distance than Sam and Pam), it just happens to work pre...
by D-503
Wed Feb 12, 2014 9:18 pm UTC
Forum: News & Articles
Topic: West Virginia Water Contamination
Replies: 27
Views: 6148

West Virginia Water Contamination

Last month, a chemical used for cleaning coal was leaked into the water supply for a large portion of West Virginia. This lead to 14 hospitalizations and left many residents without potable water. I didn't hear about the incident until I was at a restaurant yesterday and a waiter with family in West...
by D-503
Wed Feb 05, 2014 6:35 am UTC
Forum: Language/Linguistics
Topic: Pinyin Regex Golf
Replies: 0
Views: 2630

Pinyin Regex Golf

As xkcders many of you are no doubt familiar with regex golf (http://xkcd.com/1313/). As language enthusiasts you may be familiar with pinyin, a system for transcribing Chinese characters into the Latin alphabet. Given that, I though this forum would enjoy this coding challenge I came across while w...
by D-503
Sat Jan 04, 2014 12:58 am UTC
Forum: Language/Linguistics
Topic: Best Writing System?
Replies: 60
Views: 42648

Re: Best Writing System?

Regarding hanzi, I think you're underestimating the value of characters which while vastly different in pronunciation across different languages, all share a common meaning. Also for kanji, they have many pronunciations in different situations but the glyph and meaning remain constant which written...
by D-503
Wed Nov 13, 2013 7:49 am UTC
Forum: Mathematics
Topic: Smooth computable functions with "chaotic" walks
Replies: 2
Views: 1049

Re: Smooth computable functions with "chaotic" walks

At one point there you've got little f taking two arguments, then later you are integrating it over an interval. What is the domain and range of f? f is meant to be a function that returns the number of events that happens between two points in time. Sorry, I think I messed up proposition 2, I thin...
by D-503
Wed Nov 13, 2013 6:13 am UTC
Forum: Mathematics
Topic: Smooth computable functions with "chaotic" walks
Replies: 2
Views: 1049

Smooth computable functions with "chaotic" walks

I started with a question on Stack Overflow about generating deterministic random events: http://stackoverflow.com/questions/19626844/how-do-i-sum-intervals-in-a-deterministic-poisson-process One I realized my question was more calculus then programming I started this question on Math Overflow: http...
by D-503
Sat Nov 02, 2013 7:47 am UTC
Forum: Coding
Topic: making a small, simple Python script to help memorize things
Replies: 8
Views: 4234

Re: making a small, simple Python script to help memorize th

If you're interested in hearing about more memorization software, I highly recommend Anki. Flashcards can contain images of the products you want to memorize, it uses spaced-repetition, you can import data from spreadsheets, you can use it on multiple platforms and sync your flashcards across them a...
by D-503
Sat Nov 02, 2013 7:17 am UTC
Forum: Coding
Topic: Help me "hallway test" my presentation tool
Replies: 4
Views: 2464

Re: Help me "hallway test" my presentation tool

Sorry, sounds like it was an issue with one of the remotely hosted scripts not loading. I've added the scripts to my repository, so hopefully it will work now if you try again.
by D-503
Fri Nov 01, 2013 8:13 am UTC
Forum: Language/Linguistics
Topic: 中文 Garden - Chinese character study game
Replies: 10
Views: 6026

Re: 中文 Garden - Chinese character study game

When I played Ultima Online I logged in everyday because plants took 24 hours to grow and missing a few days caused them to get sick or die. It took atleast 14 full days to grow a plant. Everyday they had to be watered and possibly treated for disease. Growing the plant provided resources you could...
by D-503
Fri Nov 01, 2013 7:26 am UTC
Forum: Coding
Topic: Help me "hallway test" my presentation tool
Replies: 4
Views: 2464

Re: Help me "hallway test" my presentation tool

Thanks for trying it out! I'm not sure what's going on with the add card button because it works for me. Can I ask which browser you're using? The help modal has some content but it's slow to load right now (I need to get rid of the dataUrls in it), I'll add a loading message.
by D-503
Thu Oct 31, 2013 10:07 am UTC
Forum: Coding
Topic: Collections Hell anti-pattern
Replies: 8
Views: 4321

Re: Collections Hell anti-pattern

What kind work does your company do? I can see benefits to pattern 1 for dealing with distributed systems and bridging between programming languages. A problem with classes is that they act as a grate if you have a large system with data from lots of different places flowing through it. A change in ...
by D-503
Thu Oct 31, 2013 9:13 am UTC
Forum: Coding
Topic: Help me "hallway test" my presentation tool
Replies: 4
Views: 2464

Help me "hallway test" my presentation tool

I've been working on a web-app for quickly making slide shows with voice overs. If any of you have time to take a look and give feedback it would be a big help. The app is pretty buggy right now, but before I spend a bunch of time refining it I want to get some input to make sure it's going in the r...
by D-503
Mon Oct 28, 2013 4:21 am UTC
Forum: Language/Linguistics
Topic: 中文 Garden - Chinese character study game
Replies: 10
Views: 6026

Re: 中文 Garden - Chinese character study game

Thank you for the excellent feedback! I'm planning to add weeds to make the game-play more fast paced. I'm not sure whether I will get rid of withering, but I might. I'm going to wait for more feedback on it first. What aspect of the plucking animation bothers you, the drawing of the purple guy pull...
by D-503
Thu Oct 24, 2013 4:07 am UTC
Forum: Language/Linguistics
Topic: 中文 Garden - Chinese character study game
Replies: 10
Views: 6026

Re: 中文 Garden - Chinese character study game

Hi, thank you for your interest. And thanks for mentioning Mindsnacks, I hadn't tried their apps before. They are very well designed. The download failed because your iPhone's UDID is not included in the game's provisioning profile. iOS will not install non-market apps unless they include the device...
by D-503
Thu Oct 17, 2013 9:04 am UTC
Forum: Language/Linguistics
Topic: 中文 Garden - Chinese character study game
Replies: 10
Views: 6026

中文 Garden - Chinese character study game

I'm building a game based on memorizing Chinese characters and I'm looking for testers to provide feedback and catch bugs before I put it on the app markets. I am hoping some of you xkcders will be willing to donate your time to try it out. If I have done a good job on it, It should be a fun and edu...
by D-503
Sun May 19, 2013 12:30 am UTC
Forum: Coding
Topic: 6 Second JavaScript Lessons
Replies: 9
Views: 8126

Re: 6 Second JavaScript Lessons

Dason wrote:What exactly were you trying to convey in the JSON lesson?

What json is made of and that it can be serialized
by D-503
Sat May 18, 2013 3:52 am UTC
Forum: Coding
Topic: 6 Second JavaScript Lessons
Replies: 9
Views: 8126

Re: 6 Second JavaScript Lessons

What does the video format offer that is good verses just a textual transcript of what was typed? Novelty maybe? I'm not sure if the goal should be to teach the details of programming, that might be something you can only learn by thought and participation. What I find compelling about vine is the ...
by D-503
Thu May 16, 2013 2:18 am UTC
Forum: Coding
Topic: 6 Second JavaScript Lessons
Replies: 9
Views: 8126

Re: 6 Second JavaScript Lessons

You can pause by clicking on the videos.
by D-503
Wed May 15, 2013 4:06 am UTC
Forum: Coding
Topic: 6 Second JavaScript Lessons
Replies: 9
Views: 8126

6 Second JavaScript Lessons

I've been experimenting with using Vine to teach JavaScript. I'm hoping some of you xkcd forum-goers can provide me with feedback on my tutorials. For those of you unfamiliar with Vine, it's a project from Twitter where instead of writing messages with a 140 character limit, you record videos with a...
by D-503
Sun Mar 10, 2013 6:07 am UTC
Forum: Coding
Topic: Bounty Source
Replies: 2
Views: 6411

Bounty Source

I recently discovered Bounty Source and I thought some of the coders here might be interested in it. Basically, it lets you create monetary bounties for resolving issues on github. I have high hopes for this project. It could really improve the open source software out there. And as a coder, I'm exc...
by D-503
Fri Mar 08, 2013 5:49 am UTC
Forum: Coding
Topic: CSS inline or no?
Replies: 23
Views: 7170

Re: CSS inline or no?

If an element is used for styling rather than content, then I think it makes sense to put styles on it with the style attribute. For example, if you have a div that is used to clear a float or add padding below a fixed header bar, creating classes like "clear" or "add-padding" ma...
by D-503
Sun Feb 03, 2013 7:55 pm UTC
Forum: Mathematics
Topic: Irreducible ternary functions
Replies: 9
Views: 1936

Re: Irreducible ternary functions

Upon further thought, I think the bijection to binary functions idea may not show irreducibly according to my original definition. Take this function for example: sqrt(multi(x,x)) = x The same input for sqrt can have multiple values. It is conceivable that there is a function where some inputs map t...
by D-503
Sun Feb 03, 2013 9:04 am UTC
Forum: Mathematics
Topic: Irreducible ternary functions
Replies: 9
Views: 1936

Re: Irreducible ternary functions

Hi Anton, Maybe I'm just tired but I find something not quite satisfying about your answer. I'll try to explain by appling your idea to the add function: I could define a bijection that allows me to do this: add(x,y) = add'(foo(z)) But what if I were to compute the value of add(1,1) in a formal way ...
by D-503
Sun Feb 03, 2013 5:35 am UTC
Forum: Mathematics
Topic: Irreducible ternary functions
Replies: 9
Views: 1936

Re: Irreducible ternary functions

Unfortunately that wouldn't fit my definition because you defined tern it in terms of binary functions. For a function to be an irreducible n-ary function it must be impossible to definite with only (less than n)ary functions. There's no problem I have in mind for this. I'm just trying to explore th...
by D-503
Sun Feb 03, 2013 4:02 am UTC
Forum: Mathematics
Topic: Irreducible ternary functions
Replies: 9
Views: 1936

Irreducible ternary functions

I'm going to attempt to define the simplest possible irreducible ternary function. "irreducible ternary function" is my own term, there might be another name for the idea that I don't know about. I don't mean irreducible in the sense of polynomial irredicibility (at least I don't think so)...
by D-503
Sat Dec 01, 2012 4:01 am UTC
Forum: Computer Science
Topic: Crowd sourced natural language programming
Replies: 15
Views: 10671

Re: Crowd sourced natural language programming

I'm sure which github links you're referring to. None of the github links I've tried is dead. Could you post one of the dead links?
by D-503
Mon Nov 26, 2012 2:24 am UTC
Forum: Computer Science
Topic: Crowd sourced natural language programming
Replies: 15
Views: 10671

Re: Crowd sourced natural language programming

Hey everyone, I have a prototype ready! I'm hoping some of you will be kind enough to be my alpha testers and make some Language nodes . If you need inspiration here's a few ideas: ⋅ Take an API for a website you like, and come up with ways to interact through with it through Language quer...
by D-503
Tue Nov 13, 2012 6:42 am UTC
Forum: Coding
Topic: APIs that deserve more publicity
Replies: 15
Views: 4791

Re: APIs that deserve more publicity

YQL can do some really cool stuff.
by D-503
Sun Sep 30, 2012 5:31 pm UTC
Forum: Computer Science
Topic: Possibly stupid cryptography question
Replies: 9
Views: 11048

Re: Possibly stupid cryptography question

Why do you want it to be open for anyone to read? I mean, you're already placing restrictions on who can write to it and what they can write. It's probably easier to put a proper interface in than it is to give everyone in the world read-only access. What's the reasoning behind this decision? I wan...
by D-503
Sun Sep 30, 2012 7:16 am UTC
Forum: Computer Science
Topic: Possibly stupid cryptography question
Replies: 9
Views: 11048

Possibly stupid cryptography question

Is it possible to build a program where every account with access the program has the ability to modify part of the program's state exactly once, anonymously, while everyone has perfect knowledge about the program and it's state? Here's why I ask: I'm thinking about how I could run a database that i...
by D-503
Sat Sep 22, 2012 3:52 am UTC
Forum: Coding
Topic: Django ModelForm introspection
Replies: 3
Views: 1799

Re: Django ModelForm introspection

I'm not sure what you're trying to achieve here, but might something like this work: Django provides a helper class for creating a Form class from a Model. see: https://docs.djangoproject.com/en/dev/topics/forms/modelforms/ Once you have your form class you can just render it in a template with {{fo...
by D-503
Sun Sep 09, 2012 6:26 pm UTC
Forum: Coding
Topic: What Fun and Useful Programming Language Should I Learn?
Replies: 39
Views: 13737

Re: What Fun and Useful Programming Language Should I Learn?

I suggest JavaScript. There are some really amazing tools coming out for doing JavaScript web development. For starters check out meteor . It makes it incredibly easy to put together real time web applications. It has an interesting way of structuring programs where you put most of your UI logic in ...
by D-503
Wed Sep 05, 2012 4:00 pm UTC
Forum: Computer Science
Topic: Crowd sourced natural language programming
Replies: 15
Views: 10671

Re: Crowd sourced natural language programming

I don't want to ruin the game, but apart from Yakk's rather terse answer I haven't seen any account for the "how" yet, and the "why" is lacking altogether. Now I can guess that the "why" is just "because we can" (exploration), but the "how" still ha...
by D-503
Wed Sep 05, 2012 3:26 am UTC
Forum: Computer Science
Topic: Crowd sourced natural language programming
Replies: 15
Views: 10671

Re: Crowd sourced natural language programming

Having read Yakk's explanation, I can now say this is an awesome idea! I'm a bit stumped on the up-voting system thing though. Surely a widget's suitability would depend on the exact query, not just on how much people liked it for any query. I think for it to work properly you'd need some sort of g...
by D-503
Sat Sep 01, 2012 11:47 pm UTC
Forum: Computer Science
Topic: Crowd sourced natural language programming
Replies: 15
Views: 10671

Re: Crowd sourced natural language programming

I'll try giving a more concrete use case: Say I want to plot a function. I could use Wolfram Alpha, but then I'm stuck with whatever plot widget they give me (and unless you pay them it's not a very good one). With the site I'm proposing, you would likely see several plotting widgets, and if one doe...
by D-503
Sat Sep 01, 2012 7:58 am UTC
Forum: Computer Science
Topic: Crowd sourced natural language programming
Replies: 15
Views: 10671

Crowd sourced natural language programming

I have an idea that I've been sitting on for a while, but tonight I'm going to share it with you all. My one line description of it is Wikipedia + Wolfram Alpha. I'm calling it Language. However, since that domain name is pretty much universally taken I might have to call it something else. I have s...

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