| --- Log opened Thu Sep 14 00:00:57 2017 |
| 00:25 | < sshine> | okay, I'm brainfarting here. if (real) solutions to all quadratic equations can be written on the form (x-a)*(x-b) = 0, then how does that translate into solutions on the form ax^2 + bx + c = 0 where a > 1? |
| 00:25 | < sshine> | it seems that (x-a)*(x-b) = 0 necessitates an x^2 part with a fixed coefficient of 1. |
| 00:26 | < sshine> | but there exists solutions as long as b^2 - 4ac >= 0. |
| 00:27 | < sshine> | I'm experimenting with generating easy to solve quadratic equations. I figured the easy way would be to just pick the roots and generate an equation from them. that way I can be sure that the roots are e.g. small integers. :) |
| 00:28 | | * Vornicus points someone at vstruct. |
| 00:29 | <~Vornicus> | a(x-x_1)(x-x_2)...etc |
| 00:29 | <~Vornicus> | sshine: ^ |
| 00:30 | <&ToxicFrog> | Vornicus: oo, for what purpose? |
| 00:30 | < sshine> | Vornicus, ah, thanks! |
| 00:31 | < sshine> | Vornicus, so I can just pick a random a, x_1, x_2 and calculate b and c. |
| 00:31 | <~Vornicus> | reading in binary data, I know that. I don't recognize the format from what little I see, though. |
| 00:34 | <~Vornicus> | sshine: that's right. You can even pick a fractional x_1 and x_2 and figure out an a value that gets you back to integers. |
| 00:38 | <&ToxicFrog> | Vornicus: well, feel free to point them at me if they have questions/comments/bug reports |
| 00:39 | <~Vornicus> | I've got a thing around here somewhere that makes random arithmetic problems. http://duznanski.github.io/pilllllllz.html here we are. |
| 00:39 | <~Vornicus> | (random arithmetic problems of particular shapes that is) |
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| 06:05 | <&McMartin> | What the fuck, GTK3. |
| 06:05 | <&McMartin> | What the fuck |
| 06:05 | <&McMartin> | So! |
| 06:05 | <&McMartin> | GTK3 uses GObject, which has a retain/release model like old-school mac stuff but slightly dumber |
| 06:05 | <&McMartin> | Except it's *much* dumber |
| 06:06 | <&McMartin> | Because here I have a widget with more retains on it than its parent |
| 06:06 | <&McMartin> | And so the parent is destroyed and the child is destroyed outright innstead of merely having its refcount decremented |
| 06:06 | <~Vornicus> | that is dumb. |
| 06:40 | | Netsplit Deepthought.Nightstar.Net <-> Krikkit.Nightstar.Net quits: Emmy-zZz, @ToxicFrog, @Tamber, sshine, @Namegduf, RchrdB, @crystalclaw, @PinkFreud, @abudhabi, @Derakon[AFK], (+7 more, use /NETSPLIT to show all of them) |
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| 18:50 | <&[R]> | "Note that the challenge token is bound to your IP and port (as opposed to the [session ID]), and lasts up to 30 seconds. You read that right, it's up to; it's not "your token will expire after 30 seconds", it's "every token ever" is expired every 30 seconds. This means it's entirely possible that you may get a token and use it within the same second and have it expire. " |
| 18:57 | <&ToxicFrog> | |
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| 19:20 | <@Tamber> | ...that's... Well, it's... |
| 19:20 | <@Tamber> | uh |
| 19:37 | <&[R]> | Also |
| 19:37 | <&[R]> | "You'll need to provide your challenge token, or you will not receive any reply. If you provide a token and it's wrong, you still won't receive a reply. |
| 19:37 | <&[R]> | So basically: ask for token, send request immediately, wait for a timeout, if no reply, ask for token, send request immediately. |
| 19:41 | <@Tamber> | RCaaS? |
| 19:41 | <&[R]> | RC? |
| 19:41 | <&[R]> | Also no |
| 19:42 | <@Tamber> | Race Condition as a Service |
| 19:42 | <&[R]> | Ah |
| 20:58 | <@TheWatcher> | That sounds hilarious |
| 20:59 | <@TheWatcher> | It's practically demanding that you DOS them |
| 21:21 | <~Vornicus> | and you'd better make sure you automatic timeout isn't 30 seconds |
| 21:21 | <~Vornicus> | otherwise you'll be sitting there a while |
| 21:27 | <&[R]> | TheWatcher: It's the "Query" protocol for minecraft servers |
| 21:29 | <@TheWatcher> | Oh |
| 21:29 | <@TheWatcher> | This shocks me not in the slightest, then~ |
| 21:30 | <&[R]> | Pretty much |
| 21:31 | <&[R]> | There's an entire wiki dedicated to Minecraft's networking stuff |
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| 21:49 | <@TheWatcher> | And many broken minds |
| 21:58 | | * Alek shakes his head. |
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| --- Log closed Fri Sep 15 00:00:58 2017 |