863 posts tagged with math.
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Two roads diverged in a yellow wood... and I took the one where I went crazy for a month to raise my score 40 points... and that uh... has made all the difference?

GRE-Filter: I was happy with my GRE scores. Then, I received word that I have the opportunity to get into a super-duper-top-tier doctoral program previously inaccessible. However, my Quantitative Score--while still in the range of accepted scores over the years for this program--is now less-than-stellar relatively speaking. Is it crazy to think I could study intensely for about a month and improve my score 30-50 points? Am I overthinking this? [more inside]
posted by anonymous on Oct 15, 2012 - 12 answers

Help me figure out what in the world I should do with my life.

Should I change my major? Drop out of school to become a plumber or electrician? I need some advice. [more inside]
posted by bookman117 on Oct 14, 2012 - 31 answers

What is the cardinality of the set of all people who shall expel us from the paradise that Cantor has created?

Sweet descriptions of the empty set? [more inside]
posted by King Bee on Oct 12, 2012 - 12 answers

Typeset my equations--as vector graphics

I am trying to create math worksheets in Adobe Illustrator. I would like to not manually build the equation layout. Is there a math typesetting program (like LaTeX) that creates vector graphics I can plug directly into AI? Free/stupidly easy to use/OS X compatible are the key requirements.
posted by philosophygeek on Oct 5, 2012 - 4 answers

How fat DOES a man have to be to stop a runaway trolley?

How fat DOES a man have to be to stop a runaway trolley? Check my math/physics please. [more inside]
posted by RobotHero on Oct 4, 2012 - 10 answers

Take a math course to overcome math fear?

Math is sexy! But I am afraid of math. What class should I take to overcome my fear and get cozy with numbers? [more inside]
posted by epanalepsis on Oct 1, 2012 - 28 answers

Help me help my brain learn how to scale up and down with precision in Adobe Illustrator.

If I scaled the artwork up by typing 173.95% into the scale dialog box in Adobe Illustrator, what percentage do I scale it down by in order to get it back to its original size. Is there a simple equation that will do this operation? [more inside]
posted by OlivesAndTurkishCoffee on Oct 1, 2012 - 9 answers

what sort of maths do the aliens have?

Are some areas of maths inherently central and others as more peripheral? Or is any sense of centrality just a human experience, a cultural artifact arising from: what has had greater application, what has been studied more, what produces a greater sense of the sublime in the human mind? Are some parts of mathematics inherently a more fundamental description of what is going on in the universe, or is it as silly (or correct?) to talk about maths that way as it would be to talk that way about a classical ballet? [more inside]
posted by compound eye on Sep 30, 2012 - 6 answers

Can somebody help me track down the source claiming Leonid Kantorovich was responsible for safety on the Road of Life during the Siege of Leningrad?

Can somebody help me track down the source claiming Leonid Kantorovich was responsible for the safety of evacuees on the Road of Life during the Siege of Leningrad? [more inside]
posted by onalark on Sep 29, 2012 - 7 answers

How do I calculate the probability of a specific sum of repeated die rolls?

I'm looking to learn how to calculate probabilities for a multi-round dice game. I've researched this question some, and it looks like I might need to know how to use the multinomial distribution, but I can't find any good introductions. Please point me to the most layman-accessible educational material on this subject, and help me to help myself. [more inside]
posted by Richard Daly on Sep 28, 2012 - 6 answers

Gambling odds question

How would one (legally) take advantage of the change in odds of a given NFL team to win the Super Bowl? [more inside]
posted by glenngulia on Sep 24, 2012 - 6 answers

Expanding my pure math knowledge?

Can anyone recommend some advanced (pure) math books to learn new subjects? Also nonfiction books about math that are good reads? [more inside]
posted by DynamiteToast on Sep 21, 2012 - 23 answers

What are the odds?

Math/probability not sports: I am not a gambler, but I am trying out a method of betting on sports with some initial success. At what point can I use the numbers to confidently assume that this is down to the system rather than luck? [more inside]
posted by cincinnatus c on Sep 19, 2012 - 4 answers

Numbers Rackets and Benford's Law

Does Benford's Law apply to Numbers Games? [more inside]
posted by Tell Me No Lies on Sep 16, 2012 - 10 answers

I'm bad at math.

I already know where to place my router. My question is, how do I find the exact center of my house? [more inside]
posted by PapaLobo on Sep 12, 2012 - 8 answers

Why should "e" exist?

Why is the number "e" so... [more inside]
posted by nondescript on Sep 9, 2012 - 17 answers

Help me understand a little logic problem.

Help me understand this. Math/logic puzzle follows... [more inside]
posted by TheHollowSeasThatRoar on Sep 5, 2012 - 6 answers

Too much noise in my data

Putting on the math signal: calling the statistics-literate. Trying to change my weight/body composition and track progress in a useful way, but I'm having trouble separating normal daily variation from actual real change. [more inside]
posted by ctmf on Sep 1, 2012 - 15 answers

Help her learn Alg II by Tuesday

Sister just learned she has to take an Algebra II test on Tuesday that covers the whole shebang. She's forgotten (repressed?) most of it. What's her best bet for an Algebra II crash course that will go over all the topics? She's very smart, but not a math person.
posted by goosechasing on Aug 30, 2012 - 11 answers

Looking for a new or different High School math test generator, and Apple programs or apps for use in the classroom

I'm looking for software for a high school math teacher: first, a better/newer test generator, and second, in-classroom programs, bonus points for apps for an Apple laptop and/or an iPod touch. Details inside. [more inside]
posted by filthy light thief on Aug 28, 2012 - 2 answers

x + y = A in pre-calc. Help me solve for x and y!

What do I need to know to be ready for pre-calculus? [more inside]
posted by sacrifix on Aug 25, 2012 - 16 answers

The Iceman Wondereth

How much is an ice cube from my fridge worth? [more inside]
posted by ecorrocio on Aug 23, 2012 - 14 answers

How does science education work?

What's important for me to know about being a science teacher, since I've only taught math but will now be training teachers of both contents? [more inside]
posted by violetish on Aug 19, 2012 - 2 answers

"Why am I supposed to divide here?"

I need books that are good at explaining how to explain things to children. [more inside]
posted by kingfishers catch fire on Aug 14, 2012 - 5 answers

My Trig Teachers Name Was Mr. Angle But That Didn't Make Him A Good Teacher.

My math skills are no where near where I'd like them to be. Can you recommend a self-paced math learning site? Pretty much any branch of math can apply. [more inside]
posted by Ookseer on Aug 13, 2012 - 7 answers

Math is Hard (I need help)

Math is hard. Please help me with a slope-related problem. [more inside]
posted by anastasiav on Jul 22, 2012 - 11 answers

Recommend a programmer a book that teaches high school maths step by step

Can you recommend a programmer a book that teaches high school maths step by step? I did maths at high scool and I was OK at it. However, fifteen years later, after forgetting almost all the maths I learnt back then, I am diving deep into the theory of programming algorithms (sorting, tree structures, graph algorithms and so forth). I find the programming straight forward, but I am struggling with the theory and proof of algorithmic time and space complexities. I am looking for a book that will cover algebra, logs, limits, inductive proof, matrix manipulation and so forth. [more inside]
posted by maryrosecook on Jul 21, 2012 - 11 answers

Mathless Engineer, Need Help!

How can I learn calculus and differential equations well, in a relatively short amount of time? [more inside]
posted by anonymous on Jul 21, 2012 - 8 answers

List places to teach/instruct/adjunct undergrad Math in Seattle?

List places to teach/instruct/adjunct undergrad Math in Seattle? [more inside]
posted by brighteyes7 on Jul 20, 2012 - 2 answers

The Limits of Flatness

Are there an infinite number of 2D shapes? [more inside]
posted by mwachs on Jul 19, 2012 - 17 answers

Mac friendly computer software to draw math pictures.

Anyone know of a Mac friendly computer program that makes it easy to draw geometric figures? Preferably free, but I'm willing to pay if its not too much and if its worth it. [more inside]
posted by junipero on Jul 17, 2012 - 19 answers

Operations in the Klasies Caves

I was helping my 4th grade age sister-in-law with her math homework, and came across a question that I couldn't figure out. Can you do it? [more inside]
posted by symbollocks on Jul 13, 2012 - 13 answers

Math of Astrology

Could you recommend a book or web site on the math of astrology? [more inside]
posted by Paquda on Jul 11, 2012 - 7 answers

Getting my math(s) right.

Maths (math) people of the US: I need your help in working out if certain British conventions would be understood or standard in the US classroom. [more inside]
posted by cincinnatus c on Jul 10, 2012 - 15 answers

Physical Mathematics?

Is there a book that teaches math via physics? [more inside]
posted by adamdschneider on Jun 20, 2012 - 7 answers

Best network/graph theory software for non-techies?

I'm teaching a minicourse about networks, graphs, and computation to a non-technical audience (mostly grad students in the humanities.) What's the right software platform? [more inside]
posted by escabeche on Jun 18, 2012 - 7 answers

Pocket Anthropology

Is there a way to find out approximately when I left this wad of money in my (very old) jacket pocket, using statistics and date/number info from the bills? What would be the minimum number of bills needed for such a thing?
posted by nile_red on Jun 17, 2012 - 10 answers

It's a piece of cake to bake a pretty cake

How do I score my fantasy cake contest in the most fair manner? [more inside]
posted by disillusioned on Jun 14, 2012 - 9 answers

Exit strategy, please

I'm a math PhD student with two years left. I'm not sure I want a job in academia (but maybe I do). What should I be doing to maximise chances of success (whatever that means)? [more inside]
posted by hoyland on Jun 12, 2012 - 13 answers

Why can the reals be well-ordered but not countable?

Math-Filter - Set theory edition: I am struggling with the difference between countable infinite sets and well-ordering. Longer explanation inside. [more inside]
posted by heybearica on Jun 12, 2012 - 16 answers

An odd property of Eigenvectors

The first eigenvector is related to the sum of the columns of a matrix. What is this property called? [more inside]
posted by bessel functions seem unnecessarily complicated on Jun 9, 2012 - 7 answers

Math Geeks!! Assistance needed!!

How should a surcharge be calculated? [more inside]
posted by elf27 on Jun 7, 2012 - 11 answers

How to Find The Average Commenter?

Harmonic or Arithmetic Mean?: I'm trying to settle an argument with my wife - is using the arithmetic mean or harmonic mean more appropriate when finding the "average" number of, say, online comments made by a large number of people, where a significant portion of them make only one comment and a few people make the bulk of the comments? [more inside]
posted by salsamander on Jun 2, 2012 - 13 answers

Making the impossible possible

Help with a simultaneously math & non-math question: Finding the square root of a negative number was impossible until imaginary numbers came along. What are examples of other things that were impossible until we altered systems that have been created? [more inside]
posted by CaptainCaseous on May 24, 2012 - 22 answers

Need formula for APR with long/short odd days.

Need formula for APR with long/short odd days. [more inside]
posted by joshuamcginnis on May 23, 2012 - 2 answers

Math Help - Library Contest Edition

Math Help! We're doing a big inventory project in my library this summer and we want to attach weekly prizes to it to help motivate the poor students who have to do all the scanning. Trick is, students do not work the same amount of hours per week, so we would like some way of weighting each student's output so that those that work less feel like they can compete with those who work more while not disadvantaging those with longer hours by requiring them to go insane in order to keep up. How to keep things fair and sane? [more inside]
posted by robocop is bleeding on May 10, 2012 - 20 answers

How to model the accident rate on a certain stretch of road

How could I approach modeling the number of accidents on a certain stretch of road? I've got some semi-ecological approaches in mind but no idea if they're workable. Are there standard approaches to this sort of problem? [more inside]
posted by col_pogo on May 7, 2012 - 9 answers

I want to drink and derive in the comfort of my own home.

Good online accredited Precalculus and Calculus classes? [more inside]
posted by spinifex23 on May 3, 2012 - 5 answers

Prorating monthly fees

What is the right way to calculate daily rate for monthly charges? [more inside]
posted by primethyme on May 2, 2012 - 10 answers

Pageviews vs Visitors: Do people really just sit there and reload all day?

On the Lifehacker/Gawker websites, what do the views/viewer numbers really mean? How can articles with 100,000 pageviews only have 10,000 visitors? [more inside]
posted by sdis on Apr 28, 2012 - 9 answers

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