21:57 <@matches> SVG defines a "minimum" precision of IEEE binary32
21:58 <@matches> But there's a specification for "High Quality" viewers that have to use binary64
21:58 <@matches> That's probably the only real thing relevant directly to our problem
+--- Day changed Thu May 01 2014
+01:23 <@matches> It's May 1st
+01:23 <@matches> This means we can no longer say "The Literature Review is due Next Month"
+01:23 <@matches> IT'S DUE THIS MONTH
+01:23 * matches freaks out
+01:23 <@matches> ... but after sleep
+01:25 <@matches> Page 12 of my Literature Review by the way
+01:25 <@matches> Is the only page I like
+16:34 <@matches> The C version of paranoia compiled for me
+16:34 <@matches> Not terribly exciting (I have an IEEE 754 compatible processor! Amazing)
+22:17 <@matches> W Kahan's website is a very interesting if slightly difficult read
+22:24 <@matches> He appears to have written this 80 page pdf in a day
+22:27 <@matches> It kind of reads like one of those religious propaganda pamphlets
+22:27 <@matches> "Java is the Work of Satan"
+22:27 <@matches> "Kernighan-Ritcie C floating-point semantics are the light"
+22:28 <@matches> But every so often he has a graph or example that makes him seem less crazy
+22:34 <@matches> "And now Java forbits you to mention or use extra-precise long double arithmetic, though IEEE Standard 754 recommends its use and over 95% of computers on desktops have it built into their hardware. You paid for it, but Java denies you its benefits."
+22:34 <@matches> Java has long double now right?
+22:34 <@matches> Although that JOP I was looking at was just 32 bit
+22:36 <@matches> Ah, java.lang.math.BigDecimal
+22:37 <@matches> "But be careful with division, because it will throw exceptions if it's like 1/3, then it will be Non-terminating decimal expansion."
+22:37 <@matches> That sounds horrifying
+22:40 -!- mode/#ipdf [-o matches] by matches
+--- Day changed Sat May 03 2014
+22:01 < sulix> My crazy idea to you would be to research p-adic number representations.
+22:01 < sulix> It's been a while, but they were mentioned a couple of times in pure maths units and seemed interesting/crazy and I can't remember much about them.
+22:28 -!- mode/#ipdf [+o matches] by OperServ
+22:29 <@matches> I will look at them, the "just use a float but with more bits until you run out of memory" doesn't seem a very well thought out approach
+22:29 <@matches> Maybe someone actually cares enough to research better ways
+22:29 <@matches> I mean, something's wrong with an idea when you can write "1/3" and have a runtime exception (re: Java BigNumber)
+22:30 <@matches> I plan to write some nasty things about Java based on Kahan's rants so as to gloss over the fact that it has BigNumber built into it and forstall the inevitable "Why didn't you use Java!"
+22:31 < sulix> I think we want to truncate to whatever the most accurate you can see at the given zoom level.
+22:31 <@matches> Yeah
+22:32 <@matches> It annoys me that XML and HTML specs don't have a PDF version
+22:32 < sulix> I've been printing to pdf for some of those things.
+22:33 <@matches> None of the links to different sections would work though
+22:35 <@matches> Specifications are thrilling
+22:35 <@matches> "How to read this specification"
+22:35 <@matches> "This specification should be read like all other specifications"
+22:35 <@matches> Oh wait
+22:35 <@matches> It actually gets better
+22:35 <@matches> Is that...
+22:35 <@matches> Humour!
+22:36 <@matches> I thought that wasn't allowed!
+22:36 <@matches> "First it should be read cover-to-cover, multiple times. Then, it should be read backwards at least once. Then it should be read by picking random sections from the contents list and following all the cross references"
+22:37 <@matches> As much as I love the idea of reading 626 pages of specification backwards...
+--- Day changed Tue May 06 2014
+00:39 <@matches> http://szmoore.net/ipdf/sam/rate-my-litreview.py
+00:39 <@matches> Tim will be thrilled!
+00:40 <@matches> I'm probably going to really regret making that
+00:41 <@matches> The regret is rising to the surface
+00:41 <@matches> It's an example of an interactive document format
+00:41 <@matches> The pixels or perish guy would approve
+00:43 <@matches> So much regret
+00:43 -!- mode/#ipdf [-o matches] by matches
+23:37 -!- mode/#ipdf [+o matches] by OperServ
+23:38 <@matches> So, I have this book called "Computer Graphics" that is pretty amazing
+23:38 <@matches> Funnily enough it has all the algorithms in it
+23:38 <@matches> For computer graphics
+23:38 <@matches> Probably should have been reading it ages ago but I thought we were worrying more about precision
+23:38 <@matches> I don't even know anymore
+23:39 <@matches> Have to read 500pg textbook on graphics, 500pg textbook on floating point numbers, 500pg PDF/PostScript standards...
+23:39 <@matches> Too many pages
+23:39 <@matches> Anyway it has a section on Octrees
+23:39 <@matches> But don't worry
+23:39 <@matches> It mentions Quad trees
+23:39 <@matches> It also actually mentions fractals
+23:39 <@matches> As a thing
+23:40 <@matches> In other news, extending the document we have at the moment to allow anything other than rectangles will be interesting
+23:41 <@matches> Did you do this on purpose? :P
git.ucc.asn.au / ipdf / documents.git / blobdiff
UCC git Repository :: git.ucc.asn.au