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Comments:
<0> and -- isn't it a little 'early' unless that buzz is coming from something like 'coffee'?
<1> or bees
<0> yeah. bees.
<0> they get buzzed all the time.
<0> heh, what variety?
<1> bronaugh: "maths for informatics"
<1> bronaugh: first-year first-semester course ;)
<0> which means, pathetic maths?
<0> oh. wait.
<0> at least it wasn't "financial math" hahaa
<1> bronaugh: Calculus and number theory
<0> wish they'd done more number theory here.
<0> wait til you get discrete math.
<1> bronaugh: it was pretty interesting, we went into cryptography and information encoding
<0> mind you, your math profs might not **** as much as they do here.
<1> bronaugh: err... well, they aren't great at teaching ;)
<0> nice. we went into ... uhh... integrals. 100 and some different ways oftaking them.
<1> but the course is ok
<0> that was riveting material </sarcasm>
<1> bronaugh: necessary! :P
<1> ish ;)
<0> BS necessary.
<0> 90% of the time you have to numerically integrate anyhow.
<1> integrals are the biggest hack-job in maths
<1> well that I've discovered so far ;)
<0> heh.
<0> it's like.. wow, so you're going to teach us -crappy- algorithms to do things?
<1> heh heh
<0> (ie Riemann sums)
<1> what are they?
<0> take line. solve at numerous points.
<0> take midpoint of those values or some such. sum area of rects resulting.
<0> voila le integral.
<0> this is also known as "using a bloody for loop"
<1> aha
<0> but they made a -huge- deal out of it.
<0> I think they spent a
<0> a -week- covering it in cl***.
<0> or something similarly hilarious.
<1> isn't it how computers generally do it though? ;)
<0> no.
<1> they use some form of summing but?
<0> often things are done by Monte Carlo.
<0> other times they use cleverer ways of taking areas. interpolation. etc.
<1> are they general-purpose?
<0> ye
<0> yes.
<0> you can use interpolating polynomials given any set of points to create a best-fit curve.
<1> ahh.
<1> oh, I remember the maths professor who goes off at tangents mentioning something like this
<1> He related something in number theory to calculus anyway, said it was the analogue and often how computers tried to model it. Or something. ;)
<0> and obviously, using an interpolating polynomial with n data points, summing 4(n-1) internals, is going to be more accurate than just summing n-1 intervals.
<0> plus there's some clever ways to choose interpolation points in clever ways, further reducing # of points.
<0> basically you compute $complicated_func minimum # of times.
<2> what where how?
<0> themaxxz: fancy maths you wouldn't understand.
<0> and yeah, I'm joking :P
<1> fancy maths I won't either ;)
<0> (more likely you simply don't care)
<1> mostly because my eyes glaze over after seeing more than several symbols
<2> Indeed aI dont
<2> I daont fancy math s
<0> steg: heh. yeah, that happens to me. have to suppress urge.
<1> bronaugh: the only way I can understand maths is to sit and do it, or stare at it for ages until it suddenly makes sense ;)
<0> steg: when you see a big-sigma, though, just think "for loop" and it makes a lot more sense.
<0> steg: likewise when you see a big-pi, think "for loop" again; just multiplication inside.
<3> cheap tricks for maths noobs :-p
<0> nah, just translation tricks for people who learned cs first.
<1> phydoxx: Just for those of us who are *practical* ;)
<1> bronaugh: yeah. It's annoying maths takes time. I can sit and digest a programming/software engineering book quickly, can't do that with maths
<1> have to sit and work it all out
<0> steg: it takes me an hour to read 10 pages of math sometimes.
<4> bronaugh: it's already 2pm here
<4> and it's a weed buzz
<0> sinthetek: heh
<1> bronaugh: Our lecturer gives the densest notes in the world. MOre symbols than words.
<1> It's like working out a puzzle
<1> sinthetek: go do something useful :P
<0> steg: hehe
<5> woot ordered the new server and even got dual xeon 3.0
<0> my math prof last term didn't use symbols almost at all. she rocked.
<1> that'd be nice
<0> she was also absolutely hardcore on tests.
<0> holy.
<0> anyhow, I'll be back in a bit. gotta go eat.
<0> I think the stupid caf has stopped serving "breakfast food" by now.
<1> mmm, bacon, saussage, egg, beans... ;)
<5> beans?
<6> rumour has it, beans is Beans! Beans! They're good for your heart! The more you eat em, the more you ... uh ... never mind
<5> hush ladybyte
<4> steg: actually i'm trying to find info on this usb dma vulnerability thing
<4> did anyone respond when i mentioned it here earlier?
<1> Redragon^: baked beans. ;P
<1> dunno if you get them in the US to the same extent
<4> i am wondering if pci dma access makes usb and firewire vulnerable, how come pci-based ethernet cards and such aren't?
<1> also, your bacon ****s.
<1> Our bacon rocks.
<4> and why can't the mechanism in ethernet cards that prevent their succeptibility be adapted for use with usb or firewire?
<4> (***uming they aren't vulnerable)
<2> where is the fun in that
<4> the fun in what?
<2> everything working as it should
<4> hah
<4> i dunno, this guy said there is code that works for multiple oses available for 2 years that will allow you to bridge computers via firewire or usb and take all memory contents and it is because of pci dma access
<4> but he said there is no way to do it with ethernet for some reason and i'm having a hard time finding anything on the subject
<3> qemu -M pc -k de -net tap -hda /big/qemu/win98-01.img
<3> warning: could not open /dev/net/tun: no virtual network emulation
<3> Could not initialize device 'tap'
<3> any ideas how to troubleshoot that?
<4> looks like you need some sort of vpn support to be added
<1> sinthetek: do you believe everything random folk say on the internet? :P
<1> sinthetek: sounds like total bollocks to me
<4> he claimed to have tested it successfully on one os himself, and then someone else in the channel said he'd heard of a windows version of the exploit, but not macos or linux vers the other guy claimed existed
<1> are they providing any technical details or references at all?
<1> If not, laugh at them
<4> he mentioned it last night
<4> i will ask if i see him around again
<4> when he mentioned it was like 'wtf...' and went googling off to find more info on the subject
<4> and then like 10 min later i remember to check the chan and he'd quit :\
<1> oh
<1> I'm going out to buy food
<4> (we'd been debating the merits of xscreensaver locking
<4> )
<4> mmmk, bon apetite or whatever
<0> raa
<0> Redragon^: trapped by your budget?
<4> Redragon^ send it here!
<5> it was fun spending the $3,700 this morning
<0> good stuff.
<4> Redragon^ donate it to the "pay my weed ticket fund"
<0> Redragon^: oh remember that RAID prob?
<5> yea what did you find out?
<4> s/fund/foundation
<0> I recreated the RAID array and -- lo and behold -- read speeds went back up to 250M/sec
<5> i need donations to the new drive fund for me
<0> created it with all 6 disks present.
<0> clearly there's a perf bug there.
<5> yea just finding it will be fun
<4> i am supposed to go away a few weeks tomorrow
<5> there is a bug in kernel with that 2120 controller too it seems
<0> yeah, well, I'll just complain to the right people in the right ways.
<4> we're supposed to start hiking the appalachian
<0> sinthetek: nice.
<0> that'd be really fun. except the whole winter thing's going to **** pretty hard.
<4> it's already winter, it's supposed to start warming up soon
<0> Timing buffered disk reads: 748 MB in 3.00 seconds = 248.99 MB/sec
<0> where it should be.
<4> we're starting from the south
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