Please help me pronounce this formula related to projectile motion as it would be spoken out loud: L = v0^2 sin2θ / g
[more inside]
posted by misozaki
on Apr 30, 2013 -
15 answers
Dear Mefites, a long time ago I got a degree in graphic design but never worked in the industry. Along the way I somehow (don't remember how or why or when) became interested in math and I finished a
graduate diploma in maths as a distance learning course in my free time. I am considering applying for masters programmes in maths or related subjects but ... can I? Should I?
[more inside]
posted by Cat Set Go
on Mar 31, 2013 -
10 answers
Can a transcendental number such as pi, be raised to an irrational, but algebraic power resulting in an algebraic solution? Complex solutions would be acceptable. There might be a quick proof here, or there might not be. - Thanks for any help you can offer answering this! (And I promise that this isn't for a class or anything like that!)
posted by ch3cooh
on Mar 2, 2013 -
3 answers
Writing a script, need a few believable, throwaway lines for a character. A guy running a TGI.Friday's-like bar praises his bartender, a math genius, for giving him an idea that saves money and improves the business overall. An example of outside-of-the-box thinking that enforces that our math-genius-in-disguise really is a genius. Bonus points if the idea skirts the line of legality -- something funky with accounting, maybe?
[more inside]
posted by Cool Papa Bell
on Feb 9, 2013 -
22 answers
Can you recommend short, easy-to-understand math writing I can read before bed?
[more inside]
posted by kristi
on Jan 29, 2013 -
12 answers
I'm wondering, after breakfast, and a shower, and a commute, and coffee - what is next?
[more inside]
posted by Lownotes
on Jan 24, 2013 -
23 answers
I have roughly 20 people who each need a project. I have 27 projects and don't want anyone to share a project. I let the people pick their top five projects and rank them so I know who wants what. What is the best (easiest...) way for me to fairly figure out who should get what project so that the most people get their top choice, or at least one of their top choices?
[more inside]
posted by pwb503
on Jan 22, 2013 -
8 answers
If I want to draw something in one-point perspective, say, like a set of railroad tracks where the vanishing point is on the horizon, and the tracks are represented on the picture plane by an equilateral triangle (they appear that way to the viewer), the apex of the triangle being the vanishing point on the horizon and the base of the triangle is where the tracks meet the picture plane, how do I calculate where the railroad ties would be? (Given that in 3D they are evenly spaced. Also, I'm not really concerned with the thickness of the ties -- we can consider the ties to simply be horizontal lines.)
[more inside]
posted by strangeguitars
on Jan 8, 2013 -
5 answers
[geometryfilter] I have to assemble a tiered cake stand to hold cupcakes at a wedding tomorrow. The tiers and the styrofoam thingies that will separate the tiers are all circular. How do I make sure that I get each tier centered properly on the next?
posted by undue influence
on Dec 13, 2012 -
5 answers
I need to learn how to seamlessly convert between miles and kilometers in my head - without having to think about it.
[more inside]
posted by matty
on Nov 16, 2012 -
25 answers
Please teach me how to solve this problem related to a Home Equity Line Of Credit. While I am looking for an answer, I am equally interested in learning the math required to solve the problem.
[more inside]
posted by The Architect
on Nov 9, 2012 -
4 answers
I know the price of something now and what the price was 2 years ago - how do I calculate that as an annual percentage increase?
[more inside]
posted by jontyjago
on Oct 19, 2012 -
12 answers
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
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
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
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
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
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
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
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
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
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
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
Do you have to be "inherently" good at math to successfully major in math as an undergrad?
[more inside]
posted by lobbyist
on Apr 14, 2012 -
27 answers
My workplace has 3 small bathrooms. It seems to me that if I go to use one of them, and it's occupied, there is a statically higher chance the 2nd and even 3rd bathroom will be occupied (vs the chance that they would be occupied if the 1st one was not). Is it true?
[more inside]
posted by lohmannn
on Apr 13, 2012 -
30 answers
A is the top of a vertical line 30 feet in length. B is at the base of that line. C is 63 feet from B in a horizontal right angle. What is the distance from A to C.
[more inside]
posted by ephemerista
on Apr 9, 2012 -
7 answers
Tracking down a pre-2000 children's TV show with a female presenter in a fairy tale style magician's house.
[more inside]
posted by jeffkramer
on Mar 21, 2012 -
5 answers
Please help me with some basic math: The circumference of a circle is 8 inches. Extend that circle by 8 inches from circumference (i.e. adding 16 inches to the diameter). Now what is the circumference of the larger circle?
[more inside]
posted by _paegan_
on Mar 16, 2012 -
22 answers
Basically, what it says. I've been brushing up on my math skills via
Khan Academy, and I'm running into a problem I hit when I was in school. Basically, the math *concepts*, like Algebra, Trig, and the like? I'm able to get really easily. But, manipulating the numbers and doing the basic arithmetic? Hard. Sometimes even with a calculator, I'll miss carrying over a negative sign, and I'll get the problem wrong, despite knowing the concepts really, really well. What's going on here? Is my ADHD not under control? Are these symptoms of Dyscalculia? What? Ideas, hivemind!
[more inside]
posted by spinifex23
on Mar 10, 2012 -
28 answers
Which would be the correct way to subtract coordinates that are on different sides of the equator?
[more inside]
posted by Deflagro
on Mar 8, 2012 -
5 answers
Need to do a simple analysis around pay and experience fairness.
Example:
Two project managers managing exactly same kind of projects and have similar performance levels:
PM 1 -> Pay $130,000 ; Experience 15 years;
PM2-> Pay $80,000 ; Experience 3 years;
I want a mathematical way of analyzing if the person getting paid $80,000 is being under payed.
Now I know there are industry standards and charts available. I want to do something that may not be perfect but gives a sense.
How much weight should be given to experience and can this be factored in mathematically?
Please dont get hung up on accuracy. I want a logical analysis method that does not need to be entirely accurate.
Also, where can I find industry charts comparing pay and experience
posted by r2d2
on Mar 3, 2012 -
12 answers
I'm learning how to do dosage calculations in class - I'm terrible at math/dimensional analysis, and I am afraid I am going to overdose/underdose/kill all of my future patients! How do I quell my panic and embrace this aspect of my job? Advice from animal and human nurses especially appreciated.
[more inside]
posted by OsoMeaty
on Mar 2, 2012 -
12 answers
Ask MathaFilter:
If I square 100 mm I get 10,000 mm.
But, convert to .1 m, and square, we have .01, a smaller amount!
Why can using a conversion like this give a nonsensical answer? If I want a length times itself why does it matter the metric?
posted by Benzle
on Feb 2, 2012 -
7 answers
Now that I'm back at college, I'm having serious trouble with an elementary course in Discrete Mathematics (for computer scientists). How can I complete this course?
[more inside]
posted by Foci for Analysis
on Jan 31, 2012 -
29 answers
Several years ago, I saw a website with a fun little flash or javascript applet thingy where you could build little tensegrity structure creatures, then have oscillating movements applied to the pieces, so that the structures would seem to "walk". I don't remember what it was called! From memory, one of the simpler structures looked sort of like
this. What was it? Is it still online?
[more inside]
posted by rivenwanderer
on Jan 3, 2012 -
4 answers
What math flash card game, which required you to use each of four numbers on a card to get to one fixed answer each time, did I play in grammar school?
[more inside]
posted by AgentRocket
on Dec 2, 2011 -
5 answers
I have a B.S. in Math, but I haven't been able to find a job in my field. What can I add to my undergrad degree to be more competitive in the job market?
[more inside]
posted by ZeroDivides
on Sep 21, 2011 -
12 answers
