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News / Re: The future of TI-BANK compromised?
« on: July 25, 2011, 05:39:19 am »
Well, there are certainly enough backups to set up a mirror elsewhere if need be.
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to. 616
News / Re: The future of TI-BANK compromised?« on: July 25, 2011, 05:39:19 am »
Well, there are certainly enough backups to set up a mirror elsewhere if need be.
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Other Calculators / Re: Your Dream Calc RPG« on: July 23, 2011, 11:11:31 pm »
9: Places and reasons to explore. It's generally no fun to play an RPG where you're forced to proceed linearly.
10: Knowledge of how to proceed. While it's great to have 50 dungeons available for you to travel to, sometimes it's nice to know that you need the crystal of Cthulhu in dungeon #37 to beat the others. By a similar token, sometimes you just want to stab Navi. Too much notification can be a bad thing. 11: Just like with books, make the names pronounceable. It's fine if I've never heard of Hyrule, but I probably won't be playing long if my only weapon is a "Krytosis." 619
Other Calculators / Re: Make PTT not Delete Groups« on: July 23, 2011, 04:10:37 pm »Necro? It was just posted a couple days ago4 days. 6 months ![]() 620
Math and Science / Re: The Beauty of Mathematics« on: July 22, 2011, 06:37:53 pm »
Here's a cool demonstration of using cellular automata to make music: Otomata
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TI Z80 / Re: TBEXE - Pre-alpha feature requests« on: July 22, 2011, 01:10:24 pm »Request: Full math support. I know it's kind of obvious, but sometimes it annoys me to waste time writing simple functions (that take a long time to execute on-calc) in PC math languages that could be done very quickly in TI-BASIC.like this? Pretty much. 622
News / Re: Five new Coders of Tomorrow hired« on: July 22, 2011, 01:08:38 pm »* Qwerty.55 is glad we didn't give that troll Deep Thought CoT status
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Math and Science / Re: The Beauty of Mathematics« on: July 21, 2011, 09:03:13 pm »
@Darl: I used Chaosope to generate the second and third pictures. There are a lot of other attractor/fractal generating packages, but I find that one produces nice images without too much fuss. The first and fourth pictures were generated using Mathematica, which I don't recommend purchasing unless you have some means of obtaining it for free/small cost (generally schools or piracy).
I want a 3D Game of Life Generator now! Here you go. Requires Golly, Blender, and Python. @DrDnar: I presume that the Dec+1-1 somehow detects/fixes integer overflow? Anyway, while the mathematics behind Gaussians are very elegant and pretty, I made a conscious choice not to include them because they don't generally look terribly impressive. 624
News / Re: Contest Part 3 starts: Casio PRIZM Game, Programming Tool or Media Player« on: July 21, 2011, 02:15:50 pm »By the way, how many at Omni actually own a PRIZM to code for and test on? AFAIK there isn't a working emulator yet.I have written a simple simulator, so I can debug the application on windows platform. This helps me a lot, because there were almost no bug on the real hardware - I was able to catch them all on the simulator. I also have an emulator I've been re-writing to support the Prizm's hardware. Nice job on the syscall emulator ![]() 625
Math and Science / The Beauty of Mathematics« on: July 21, 2011, 02:11:49 pm »
As most of us are know, mathematics can be very brutal and ugly, especially when dealing with algebraic equations. Here are a few of its prettier sides.
Warning: the images in spoilers are large. This image was generated during a search for a more efficient way to compute A Mod B. It's a plot of the error between the true answer and my approximation over all possible 16 bit operands. I'm not sure why the resulting graph is so complex given the simplicity of the underlying function, but the remarkable self-similarities and other fractal qualities make it interesting. Spoiler For Spoiler: The next picture is a strange attractor that belongs to a family of functions known as Lorenz equations. This particular family is characterized by their extreme sensitivity to initial conditions. A change of one in a hundred parts can result in a completely different system. Spoiler For Lorenz attractor: Here is an example of such a change. A single constant in the equations was changed to produce this graph from the previous one. Spoiler For Spoiler: Another group of functions with interesting graphs are the one dimensional elementary cellular automata. In addition to their interesting computational properties (several of them are Turing-equivalent), some of them are chaotic to the point that they can safely be used for cryptographic grade random number generators. One particularly well known automaton is Rule 110 (following Wolfram's notation). The picture, which started from random initial conditions, clearly shows the propagating structures that form the basis of this rule's universal computation. Spoiler For Spoiler: Cellular automata can occupy more than one dimension, though. Here's a model of a two dimensional cellular automaton known as Conway's life rendered over time. Spoiler For Spoiler: If anyone has anything else, feel free to link it below. 626
Humour and Jokes / Re: 9001 signs you're addicted to calcs and Omni« on: July 20, 2011, 05:09:56 pm »
1799: You laugh because you know 1798 is actually a sign you're addicted to cemetech.
1800: You understand 1799 627
TI Z80 / Re: Star Fox« on: July 19, 2011, 09:24:03 pm »
Ben_G has other projects, I think. Keep in mind that if you really want a project to remain active after the original author retires it, the best way is generally to learn how to maintain it yourself rather than asking others to do it
![]() Of course if Ben wants to take Star Fox on, that'd be great. I'd love to see this project completed. 628
TI Z80 / Re: Star Fox« on: July 19, 2011, 08:30:25 pm »
Yeah, this project is dead from what I understand.
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Other Calculators / Re: Everyone Should Use Calcsys« on: July 19, 2011, 04:04:23 pm »
Personally, I never use it unless I'm monitoring line states in the serial port. The hex editor isn't fast enough compared to PC ones and it doesn't really offer any features that I use regularly.
PS: I wrote my own hex editor that's a heck of a lot faster than calcsys' in Axe. I generally use that if I need something on-calc. 630
Casio Calculators / Re: Prizm Wiki« on: July 19, 2011, 03:33:11 pm »
The old wiki's used the Creative Commons license because I prefer it. It's also the general Wikipedia license, so no one should have a problem. To change the license, though, I would need ftp access from Juju.
As for references, I think I could fix those if I had the aforementioned ftp access ![]() PS: That's what sucks about mediawiki. To do anything useful generally involves either ftp or DB editing... |
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