math

Latest

  • Profession costs

    by 
    Eliah Hecht
    Eliah Hecht
    08.01.2007

    Over on the WoW-Europe forums, Highlander (of Terenas-H) has done an interesting analysis of the relative costs of leveling the crafting professions, assuming you buy all the required materials from the auction house. His pricing data is from WoWEcon, so it should be a reasonable average of costs on the various realms. Above you can see a chart I made from his numbers, showing the cost to get each profession to 300 as well as the cost to take it to 375. Blacksmithing and Enchanting are, by a significant margin, the most expensive. While Highlander correctly points out that most smiths and enchanters will procure the materials by their own means (mining or disenchanting) rather than buying them, those mats still have an inherent value (i.e. they could be sold at the AH), and therefore I think it's fair to say they are just as expensive as they look. Note that there is no number for the 300–375 part of jewelcrafting because Highlander says costs vary too much to give a solid estimate. For the raw numbers and more discussion, take a look at Highlander's post.

  • Copy as HTML plug-in, amongst others, for VoodooPad

    by 
    David Chartier
    David Chartier
    07.25.2007

    As I am finally wrapping my head around just how useful Gus Mueller's VoodooPad can actually be, I'm getting more interested in tinkering with how it can be extended and made to do my bidding. Dubbed as a "garden for your thoughts," VodooPad is a great place to jot down ideas, lists and notes with a wiki-like document format that makes it dead-simple to link one page to another. Out of the box VoodooPad comes with a lot of great features, but Gus also maintains a VoodooPad plug-ins page with a number of add-ons for making VoodooPad do everything from adding some handy keyboard shortcuts to more complex abilities like rendering math in your documents and allowing plug-in authors to use Python for writing VoodooPad plug-ins.At the top of my list, however, is the HTML Tools plug-in which allows you to preview the current VoodooPad page as rendered HTML, Textile or Markdown, as well as copy the text you've written as HTML (with styling attributes and all) or Simple HTML with just the plain markup. It's a handy plug-in for anyone who, like me, prefers to compose blog posts (or of course websites) in desktop software in order to take advantage of all the power Mac OS X has to offer, then simply copy and paste the blog post as HTML into their blogging engine or CMS. This Simple HTML feature needs a little work, however, as it isn't creating entirely proper HTML just yet. Lists, for example, are created simply with <br> tags instead of actual <ul> and <li> tags, but it could do the trick for those who aren't exactly trying to pass every HTML validation test available across the web.The VoodooPad plug-ins are provided for free, though some of them are still PowerPC-only. Demos of the $29.95 VoodooPad are of course available, with a $49.95 VoodoPad Pro version that offers a few key features for power users, as well as a free VoodooPad Lite version for those who don't need quite as much.

  • Armory data: Popular and unpopular specs

    by 
    Elizabeth Wachowski
    Elizabeth Wachowski
    05.03.2007

    Finally, someone has done something worthwhile with the Armory other than make fun of people's gear and complain about invasions of privacy. Zyph of Maelstrom wrote a program that pulled random names of level 70 characters off of Allakhazam and inputted them into the Armory, and then compared their specs. He ended up with the spec information of over six thousand players. Zyph wanted to find out three things from his study. First off, he wanted to know what percentage of a class was specialized (31 points or more) in one tree. Then he wanted to see how many people who were specialized in a tree skipped the 31- and 41-point talents of that tree, and how many took them. The results of his survey can be found beyond the cut.

  • Mathematica 6 ships

    by 
    Mat Lu
    Mat Lu
    05.02.2007

    You may recall that back at WWDC'05 when Jobs announced the switch to Intel, one of the companies he invited on stage to discuss creating Universal Binaries was Wolfram Research, whose flagship product Mathematica is probably the leading desktop mathematics application. Mathematica has now reached version 6 and the new features are manifold, representing (according to Wolfram) the "most important advance in the 20-year history of Mathematica." Not having much understanding of these things beyond attempting to use it back in college to do my calculus homework for me, it does seem that there's a lot new, including Dynamic Interactivity and "over 1000 new computational functions & interface enhancements."One downside of the new release for Mac users, however, is that version 6 remains a 32 bit application in OS X despite the availability of 64 bit versions for Windows, Linux, and various Unix flavors. Mathematica 6 is available now at a variety of different price points (education, etc.), with the standard professional version coming in at a cool $2495 for Mac.Thanks, Stern!Update: It was pointed out in the comments below that, although it is not enabled by default, it is possible to get 64 bit support on Intel in OS X by following these instructions. Thanks, Geoff!

  • Soulver "plain English" calculator

    by 
    Mat Lu
    Mat Lu
    04.25.2007

    Just yesterday we posted on the bc command line calculator. Well on the other end of the UI spectrum is Soulver from Acqualia Software. Its authors claim that Soulver is a "plain English" calculator in that you can actually type in certain (in fact very limited) phrases and get answers, as you see above. In general, though, you'll use Soulver as a normal sort of calculator, but with a pleasing, easy to read interface. The expressions to be evaluated go on in the left column and the answers appear in the right, all in a nice clean list. As you can see, you can also open a couple of palettes with conversions and statistics on the entire column. Perhaps ironically, the actual number crunching power under the pretty GUI is the same bc mentioned above. Soulver is not meant to be a particularly sophisticated scientific calculator (though you can define variables, for instance), but rather a kind of "back of the envelope" replacement. It's an unusual concept, but once you get your mind around the idea of it not looking like a stand-alone calculator, I actually think the paradigm works well (and I put my own money where my mouth is on this one).Soulver is $17.95 and a demo is available.

  • Texas Instruments finally gets fresh, unveils TI-Nspire calculators

    by 
    Darren Murph
    Darren Murph
    04.11.2007

    We're not exactly sure if Texas Instruments' widely utilized TI-83 / TI-84 line of calculators have reached the same success as Casio (but it's fairly safe to assume a "yes"), but the firm is finally throwing out a substantial update to the graphing calculators that you, your folks, and probably your grandparents all used throughout high school. The TI-Nspire lineup maintains the same relative form factor, but offers up a few swank advancements such as multiple representations, "grab-and-move" functionality, resizing, dynamic linking, and of course, the oh-so-sweet ability to save and edit in-progress work (shown after the jump) right on the device. Additionally, Windows / OS X software will be available to mimic the on-screen abilities of the handhelds, which means those days of viewing the monochrome display via an overhead projector are long gone, and for those who just aren't willing to make the transition, TI is even including a snap-in TI-83 / TI-84 Plus keypad so you can upgrade your machine without relearning keystrokes. The TI-Nspire and TI-Nspire CAS are both slated to hit instructional dealers this Fall for educators (commercially available by Fall 2008), so we'd suggest pinching those pennies now in back-to-school anticipation.

  • Genius DS wants to train your brain

    by 
    Alisha Karabinus
    Alisha Karabinus
    03.30.2007

    With all this brain training going on, one wonders just how long before DS aficionados start racking up the patents and the Nobel Prizes. Maybe we're just not quite there yet. We need to train further. Well, don't despair, future genius inventors, there's yet another edutainment title on the horizon, and it's coming to stretch your gray matter. Genius DS - Equal Cards is slated for this summer, and seems to be primarily a math-influenced title, and the math puzzles use cards that must be sorted. Sounds riveting.

  • Attack tables and you

    by 
    Eliah Hecht
    Eliah Hecht
    03.24.2007

    Hello! Math time again. Some of you may know how attack tables work, but many of you, I'm sure, don't. This post in the European official forums contains the clearest explanation of attack tables I've seen, and I'd advise anybody interested in the mathier side of the game to go check it out. Some parts of it are copied into this post, because they are excellent and not everyone can access the official forums. I am also indebted to the ever-excellent WoWWiki."What is an attack table," you ask? Why, it's the method by which WoW decides what's going to happen when a mob or player attacks another mob or player. Is the attack going to miss, be parried, crit, or what? As it turns out, there are seven possible outcomes of a melee attack (six if there are no mobs involved). They are:Miss Dodge Parry Glancing Blow (players against mobs only)Block Critical Hit Crushing Blow (mobs only) Regular Hit

  • PS3 or beer? Microsoft poses the ultimate question

    by 
    Paul Miller
    Paul Miller
    03.23.2007

    While we might've put down a few of Microsoft's last night Europe exploits as a tad immature, we aren't going to deny the genius here: Microsoft's message to gamers is that the PS3 = the Xbox 360 + £146 in beer money. Of course, such a mental exercise is nothing without a bit of illustration, so Microsoft carted in just that much beer to the offices of the UK's CVG magazine (above) and Auckland, NZ's GamePlanet store (pictured after the break). Naturally, Sony will have the last laugh when its utterly sober fanboys use keen rhetoric to destroy their tipsy MS fanboy opponents in the comments section following this post.[Via Joystiq]Read - CVGRead - GamePlanet

  • In defense of the "PlayStation generation"

    by 
    Kyle Orland
    Kyle Orland
    03.04.2007

    Jack Thompson isn't the only one worried about the deleterious effects of video games on our youth. U.S. Department of Homeland Security executive Jay Cohen recently told PC World magazine about an "[education] crisis in this country" caused by a "PlayStation generation" that wants quick thrills and avoids difficult subjects like math and science.We understand that Cohen might just be using the "PlayStation generation" moniker as a convenient, rhyming shorthand for a new group of students who've grown up with the near-ubiquitous system. And we understand that there is a real problem with math and science education in this country, especially when compared with the rest of the world. But to imply that students raised on modern video games are easily distracted and afraid of a challenge is simply nonsense.Ask any gamer who's gotten a 100 percent completion in Grand Theft Auto III if they were inclined to give up because it was "too hard." Ask the new breed of professional gamers if they are reluctant to practice for hours a day because the competition is "too hard." Ask the thousands of fans who've decided to develop mods for their favorite game if they were discouraged from learning the necessary programming skills because it was "too hard."Students aren't shying away from math and science because the subjects are hard -- they're shying away because no one has made these subjects interesting to them. Instead of vilifying video games for encouraging instant gratification, our educators should be trying to learn what makes these games so engaging and applying these same techniques to their math and science courses. It's amazing what students are willing to learn if the lessons are hidden in the guise of something fun.[Update: Fixed a grammar error. Thanks malwin.]

  • Improved Divine Spirit by the numbers

    by 
    Eliah Hecht
    Eliah Hecht
    02.05.2007

    Having just hit 70 on my priest this morning, my mind is on heal specs. I'll probably stay with my holy DPS spec for a little while for attunements and rep grinding and whatnot, but sooner or later I'm going to go healbot. I just know it. For my money, the big debate as far as healbot specs go right now is Improved Divine Spirit (IDS) -- that is, whether you'll be better off with 21/40/0 or 23/38/0 (builds are for illustration only; I haven't been able to figure out whether Holy Concentration is worth it or not). These builds differ by only two points: the first has no points in IDS and 5/5 Empowered Healing (EH), the second has 2/2 IDS and 3/5 EH. Anyway, I was researching the issue, and eventually made my way over to the worldofwar.net Priest forums, where theorycraft superstar Trepidation (aka Trep) crunched the numbers and came up with a very nice chart of how much more you'd get from EH vs. IDS for various heals and various values of +heal and spirit. EH always helps your Greater Heal and Flash Heal more than IDS does; the question is whether the boost IDS gives the rest of your group, as well as your other heals, gives it the edge. The charts are too long to repost here, but I encourage you to go check them out. However, for commonly-quoted early endgame values of +1000 heal and 500 spirit, here's the breakdown: Rank 1 Gheal: 1.74% Rank 7 Gheal: 1.10% Rank 7 Flash: 1.17% That is, EH will give you somewhere between 1–2% more than IDS will, for your Gheal and Flash. These numbers will go up as you get more +heal, and go down as you get more spirit. So does IDS help other casters in your group, and your other heals, by 2% or so? If so, it might make sense to get IDS. Otherwise, it seems that EH is a stronger choice.What has your experience been? Have any of you had a chance to test some pure healing priest builds yet? Another question I've been wondering about, as I alluded to above, is Holy Concentration. I like it in theory, but I'm having trouble freeing up three points for it. How has it been working out for you, if anyone has it?

  • AddOn Spotlight: RatingBuster

    by 
    Eliah Hecht
    Eliah Hecht
    02.02.2007

    This one is nice and simple. You know those combat ratings that Blizz introduced in 2.0.1? Crit rating, hit rating, etc.? What RatingBuster does is translate those into percentages. This is harder than you may think, because the relationship between rating and percentage varies according to your level as well as the type of rating. RatingBuster does the math for you and makes your tooltips look like what you see in the screenshot. Specifically, it inserts the little percentages in parentheses by the spellcrit and spellhit ratings.

  • Sniffer algorithm leads robots to faint, faraway scents

    by 
    Darren Murph
    Darren Murph
    01.27.2007

    Although having the boys in blue tracking you down based on your unique aroma fingerprints might seem frightening, just envision the terror that would ensue if an ultra-keen robot was onto your trail from miles away. Massimo Vergassola and and colleagues at the Pasteur Institute in Paris, France, have created an algorithm that can actually instruct a robot "how to move in order to gather as much olfactory information as possible." The mathematical formula allows a machine to home in on "even the faintest of scents" by analyzing which direction the smell is getting weaker or stronger in, the frequency of the whiffs, and eventually, it could even take into account disturbances such as wind gusts. After trialing the algorithm on computer-based robotic models searching for a scent, he found that the theoretical guinea pigs moved in "S-like patterns" to sniff things out, which is quite similar to the method used by moths (renowned for their sense of smell) when trying to discover the source of an odor. Researchers state that implementing the technique into an actual robot would be fairly "straightforward," and could also be used for other tasks that involve "searching with limited information" -- or alternatively, on bots who are already trained to chase down foes.

  • Incoming buff for Frostbolt 12

    by 
    Eliah Hecht
    Eliah Hecht
    01.19.2007

    Such power we have here at WoW Insider! I posted early this morning about Frostbolt 12 doing less damage and costing more than rank 11, and now it's going to be buffed. Vaneras, bearer of good tidings: We have received quite a few reports regarding the Rank 12 Frostbolt not doing enough damage when compared to Rank 10 and 11. To address this issue we plan to change Rank 12 in the near future, hopefully to be implemented with the next patch already. Frostbolt rank 12 should get improved and receive approximately 20-25 additional damage points for max damage This looks like a pretty small buff to me. That makes sense in theory, though, since I finally got my head around Tseric's argument from yesterday. Basically, the argument is that rank 11, as a book drop, was meant for uber 60s, whereas rank 12 is meant for normal 63s. If they had as much of a jump every time as they did between 10 and 11, Frostbolt would soon get pretty imba. Let's compare numbers, just for fun:

  • Brain training on your internet browser

    by 
    Andrew Yoon
    Andrew Yoon
    01.16.2007

    Did you know that the Nintendo DS isn't the only system that can train your brain? In Japan, Sega created their own mildly-successful edutainment games that required you to do math at the speed of light. AZ92 from the PlayStation forums is hosting a few Flash demos of the game, formatted for the PSP. You can use m.pspfanboy.com to play these short demos, directly from your PSP. Demo 1Demo 2Demo 3Demo 4 [Update 1: First server ran out of bandwidth. Updated links. Thanks, Crazy_Chris]!

  • Arithmetic trainer for the mathematically challenged

    by 
    David Hinkle
    David Hinkle
    11.29.2006

    Japanese folk, both young and old, who lack the foundations of a healthy mathematics knowledge may partake in rigorous exercises allowing one to confront their demons (with impeccable Algebra skills) and, ultimately defeat them with math skills of their own. It's a war where the sevens eat nines (ynuck ynuck) ...With various schools of math being present, the game looks like (and we're going on Google translation here) it takes you through all of math's different problems such as subtraction and division, progressing on to more difficult exercises as the player solves them.

  • Apple Matters does the math on Think Secret's accuracy

    by 
    David Chartier
    David Chartier
    10.09.2006

    I'll admit to being just as interested in what Apple has up their sleeve as the next guy, but I've always harbored a chip on my shoulder towards the rumor sites. The constant 'anonymous' sources who wind up all too often being as clueless as they are nameless have always irked me, and James R. Stoup at Apple Matters decided to take Think Secret, one of the largest rumor mongers out there, to task to see just how accurate they've actually been.Mr. Stoup did the math that was a long time coming and surveyed Think Secret's reports on Apple products between January 05 - September 06. You should really check out the results, as he did a bang-up job detailing everything he found, but to summarize: James found that Think Secret's accuracy can get pretty black and white; either they nail it or they couldn't hit the broad side of a barn with a wrecking ball. He also discovered some patterns in terms of which kinds of products Think Secret typically nabs correctly, concluding that they have a fairly good batting average with Mac hardware and iPods, but their 'inside scoops' on software tend to represent that aforementioned wayward wrecking ball.Take a look at James' post for the real (and thorough) details of his findings, but don't think he's trying to bash the rumor gurus, Think Secret or otherwise. After all, what Apple fan doesn't hold at least some place in their heart for rumors of what shiny new thing Apple might have coming up? I think James' investigation should serve at least as a reminder that rumors are exactly that: rumors, and not much more. One is merely rolling the dice when reading these sites and building up hopes of a fancy new [insert name here] or a product revision.With that said, we'll be sure to stay on top of the latest gossip to make sure y'all can decide whether the latest iPhone or media center rumors could be worth that extra wait.

  • Doing the Math on the New Honor Kill Decay Rate

    by 
    Mike Schramm
    Mike Schramm
    08.08.2006

    There's lots of questions going around on the changes in the Honor system coming up in patch 1.12, but not a lot of clear answers, so let's pull out the old nerdulator and crunch some numbers.First, if you're just wondering what the story is and don't care much about the numbers, the news is good for most of you. Basically, you'll be able to get more kills on the same person before they're worth no honor at all. Additionally, Blizz is changing the honor curve a bit-- even though there's no numbers on that yet, they say it's "to allow more people into the ranks." So we assume that's good news for most of us-- if you're one of those players who farms honor in the battleground for forty hours a week, you're probably not real happy about that, because there will be more higher ranks walking around. But then again, you were probably one of the kids who messed up the grading curve for the rest of us in math class.But speaking of math class, let's see what they're actually doing with the "diminishing returns" on honor kills. Currently (before 1.12), there is a diminishing return of 25% every time a PVP player gets killed. That is, the first time they're killed, 100% honor is given (the actual number of honor is based on all kinds of other factors-- the ranks and levels of the players involved, whether you're in a group or raid, and a few other things). Then, the second time they're killed, 75% honor is given, then 50%, 25%, and on the fifth time they're killed, no honor is given. But in 1.12, we're told that the diminishing return will fall back to 10% per kill. The first kill, then, will grant 100%, but the second will grant 90%, then 80%, and so on and so forth. Which means you'll be able to kill the same player more times, while still gaining honor.So the big question is, how much more honor will we get? (We told you we were pulling out the nerdulator for a reason.) Just for calculation, let's use an honor score of 100. Under the system before 1.12 (the formula is 2.5x, if you want to get really nerdy about it), you'll get 100 + 75 + 50 + 25 + 0 = 250 honor before your target is honorless. Under 1.12 (formula: 5.5x), you'll get 100 + 90 + 80 + 70 + 60 + 50 + 40 + 30 + 20 + 10 + 0 = 550. That's a whopping 220% more honor before every kill goes honorless. Sounds nice! Except that everybody else is getting honor at the same accelerated rate, too. So not so fast on shopping for that new High Warlord gear. Blizzard's updating of the ranks curve will help get you the rank you want, but the new honor kill decay rate just means there's lots more points for everybody to fight over.