| --- Log opened Sun Nov 05 00:00:26 2017 |
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| 04:48 | <@celticminstrel> | Why would a file 403 when referenced from an HTML document, yet load fine if accessed directly? |
| 04:49 | <@celticminstrel> | I don't see anything in the logs about why it 403s. |
| 04:50 | <@celticminstrel> | Unless that number just after the 403 means something. |
| 04:50 | <@celticminstrel> | The only other difference is the referrer, but I'm pretty sure I didn't have anything dependent on referrer... |
| 04:54 | <@celticminstrel> | Oh, right, there was a separate error log. |
| 04:55 | <@celticminstrel> | ...but it has nothing. |
| 05:07 | <@celticminstrel> | That said, it seems the referrer is probably the cause, so if that's the case I just need to find where this is happening... |
| 05:08 | <@celticminstrel> | Ohh, found it. |
| 05:08 | <@celticminstrel> | I was doing a referrer thing to allow only local links to it. |
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| 05:11 | <@celticminstrel> | (The issue here is thus that the domain was changed.) |
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| 06:08 | < Vornlicious> | Today's math I should really have known about before: the rearrangement inequality. |
| 07:35 | < Vornlicious> | (given two lists of numbers a and b, sum(aa*bb for aa,bb in zip(a,b) is maximized when a and b are sorted) |
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| 09:58 | <&Reiver> | I have no idea what you just said |
| 10:01 | < Vornlicious> | Say I have two lists, [1, 3, 5] and [2, 4, 6]. 1*2+3*4+5*6 = 44. But if I rearrange one of the lists and then try the same thing, it won't come up with anything bigger than 44. |
| 10:04 | < Vornlicious> | Like, if I use 1,5,3, I get 1*2+5*4+3*6=40 |
| 10:07 | < Vornlicious> | (other values are 3,1,5: 40 3,5,1: 32, 5,1,3: 32, and 5,3,1: 28) |
| 10:08 | < Vornlicious> | (the fact that the reverse sorted one gives the minimum is not a coincidence) |
| 10:10 | <@himi> | Is that result Significant, or just Interesting? |
| 10:13 | < Vornlicious> | Super useful. It contains both AM-GM and Cauchy-Schwarz, which are themselves considered the two most important inequalities. |
| 10:21 | <@himi> | Nifteh |
| 10:26 | <&Reiver> | I don't know what either of those mean, either. |
| 10:31 | | * Reiver just finished Bastion. This is not only notable because Bastion is a truly lovely game, but for being the first game he's truly finished in roughly two years. |
| 10:34 | < Vornlicious> | AM-GM is arithmetic mean vs geometric mean. Take a pile of n positive numbers, add them up, divide by n... That'll be bigger than multiplying then and taking the nth root. Try it on, say, 2 and 8. |
| 10:38 | < Vornlicious> | Cauchy-Schwarz is about inner products; if you've done some vector math, you'll recognize it in the cosine formulation of dot product. |
| 10:43 | <@himi> | Thank you for asking for clarification, Reiver - I feel too embarrassed at my lack of higher maths to ask . . . |
| 10:44 | <@himi> | One day I'll go back to school for a second degree or something in maths . . . |
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| 10:45 | < Vornlicious> | You have to get up relatively early in the morning to know more math than me. That or, you know, major in math. |
| 10:51 | | * himi was always good at it, but skipped up a grade in maths during high school |
| 10:52 | <@himi> | That left me with annoying gaps that caused issues later on |
| 11:00 | < Vornlicious> | I skipped two. I missed... Not as much as I could have. |
| 11:01 | < Vornlicious> | Like, half life, and generic conics, and... Rational roots. Are the ones I remember. |
| 11:02 | <@himi> | I have anxiety issues that got triggered by the gaps, which was the big kicker |
| 11:02 | < Vornlicious> | Ah. Yeah that doesn't help. |
| 11:03 | <@himi> | I really just need to go back through my first year Uni textbooks and work through stuff, but finding time to do that is the challenge |
| 11:03 | <@himi> | . . . and then work through some of the more advanced textbooks, and then whatever else takes my interest |
| 11:04 | < Vornlicious> | Recommendation: start with spivak's calculus |
| 11:07 | <@himi> | Lots of 5 star reviews on Amazon |
| 11:08 | <@himi> | Why that in particular? |
| 11:11 | < Vornlicious> | Well written, self contained, built for people in a math track. You can go in with very little math knowledge and it's a full real analysis course. |
| 11:12 | < Vornlicious> | And you don't get bogged down with 100 exercises about one integration technique |
| 11:12 | <@himi> | Okay, I'll see if I can get hold of it |
| 11:12 | < Vornlicious> | I have a PDF of an earlier edition. |
| 11:12 | <@himi> | So targeted at people who don't need a lot of work to get up to speed on the stuff being covered? |
| 11:12 | < Vornlicious> | Found it on the internet. |
| 11:12 | <@himi> | That'd be nice, if you can send it to me |
| 11:13 | < Vornlicious> | Sure |
| 11:15 | < Vornlicious> | (later though when I'm home) |
| 11:15 | <@himi> | Okay |
| 11:20 | <@himi> | . . . huh - I just found a copy of the 3rd edition |
| 11:20 | <@himi> | Bitmapped PDF, but still, better than a poke in the eye with a sharp stick |
| 11:21 | < Vornlicious> | Nice |
| 12:01 | <@gnolam> | Huh, the TempleOS guy is on the run. |
| 12:05 | < Vornlicious> | Man |
| 12:11 | <@gnolam> | https://secure3.lasvegasnevada.gov/ewarrantlookup/wanted_poster.aspx?HistNo=1000 379&CaseNo=%27C1180047A%27 |
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| 14:30 | <@abudhabi> | !roll /win 16 |
| 14:30 | <@abudhabi> | Damn my fingers. |
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| 23:45 | <&ToxicFrog> | Hmm |
| 23:45 | <&ToxicFrog> | So I have a bunch of interfaces I need to implement (reify) and/or a bunch of classes I need to extend (proxy) |
| 23:46 | <&ToxicFrog> | And in most cases these are complicated enough that I want each one to be in its own file |
| 23:46 | <&ToxicFrog> | So perhaps what I actually want is (ns :gen-class)? |
| 23:49 | <@Reiv> | what are you working on? |
| 23:50 | <&ToxicFrog> | Reiv: I'm poking at ttymor again, this time in clojure |
| 23:51 | <&ToxicFrog> | The advantage is that this gives me access to squidlib (utilities for FOV, pathfinding, and suchlike) and lanterna (curses but also a terminal emulator) |
| 23:51 | <&ToxicFrog> | The disadvantage is that those are written in java, and I'm only just getting feet-wet with java/clj interop |
| 23:52 | <&ToxicFrog> | And some of the requirements imposed by the API are at odds with idiomatic clojure, e.g. the FOV routines expect the visibility map to be a mutable float[][] |
| --- Log closed Mon Nov 06 00:00:27 2017 |