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Please help me evaluate integrals more accurately. Sloppy calculus is killing me. [more inside]

Why should I study math? [more inside]

Please refresh my memory with regard to a straightforward question of fair dice and probability. [more inside]

Math Filter: I am trying to find a name for this equation. I am not sure if I can solve it given the information that I currently have. [more inside]

Do the economics in Nick Spencer and Christian Ward's *Infinite Vacation* make sense? Are supply and demand meaningless concepts when an infinite multiverse is brought into the picture? [more inside]

Can someone give me some insight as to how to approach and make sense of mathermatical proofs? [more inside]

I'm about to start a 300-level Statistics course, but my math skills are very rusty. How can I quickly rejuvenate my old skills? [more inside]

Please explain this mathematics joke to me. [more inside]

I just failed my math class (a finance class). I'm smart at math but I don't handle organization well for math-related classes. How can I handle them classes better? [more inside]

Counting-Filter: A friend once asked me how many points the entire 52-card deck is worth in the game of Cribbage...not that you could actually be dealt the whole deck, but just a curiosity. [more inside]

I'm a pure mathematician with a Ph.D. and I'm currently a visiting professor at a large state university. However, I'm looking to switch gears and get into the quantitative finance field. The problem is that I don't know anything at all about finance. I know that there are companies such as D. E. Shaw that hire mathematicians that don't have financial experience; what other companies should I look at? Is there any general advice you'd give someone in my position? Also, I have my Ph.D. from a well-regarded state school, but I'm not an Ivy-leaguer; does that put me at a disadvantage?

I have a learning disability (dyscalculia/mathematics disorder). Could I handle the formal language component of an undergrad Introduction to Logic class? [more inside]

When do I look for non-academic jobs if I'm trying to transition out of academia, and which jobs do I look for? (I have a math PhD.) [more inside]

I get to teach myself Cryptography for a class, please help me pick my book! [more inside]

But Sir, what is x? Teaching students algebra for the first time. They keep wanting to put values in for x, and write that down.
E.g. x + x = . Becomes 1 + 1 = 2, in their books. Whereas I want x + x = 2x.
Does anyone have any strategies, or techniques to overcome this? [more inside]

I've been seriously considering becoming a high school math teacher. I have some experience teaching in a classroom, and lots of experience tutoring. What I'd like to know now - before I jump into an alternative degree program - is what it's actually like *being* a teacher day in and day out. If I'm not going to be able to hack it, I'd rather know now. [more inside]

How do I assign partial credit consistently? [more inside]

Assuming a grasp of college algebra, what maths would one need to understand the entirety of the wikipedia entry on white noise. Which order would be the most advisable way to learn those maths and which books might be good for a self study on those topics?

I'm writing a graphics app where I'm generating a simple gear transmission system with a variable number of gears each with variable number of teeth and placed at random orbits around each other. I generate gears in succession, placing and rotating each with respect to its parent/driver gear before moving on to the next. The problem I'm having is how to determine the initial orientation of each subsequent gear such that its teeth are properly meshed with that of its driver. [more inside]

Textbooks on data mining techniques / statistical analysis on large data sets? [more inside]

WHEN should I have my six year old first grader do her homework? [more inside]

Is it possible that an English speaker learning Chinese would develop problems with math? [more inside]

I need help untangling a formula for tracking poker winnings. All this math is making my head hurt! Totally legal details within. [more inside]

How math intensive are the online MBA programs from ASU and Penn State? [more inside]

Why doesn't the OED have better coverage of mathematical terms? Is this an area they want to improve on, or have they drawn a line of obscurity somewhere that just leaves out more than I expected? [more inside]

MathFilter: Problem with permutations [more inside]

The area between f(x), the x-axis and the lines x=a and x=b is revolved around the x-axis. The volume of this solid of revolution is b^3-a*b^2
for any a,b. What is f(x)? [more inside]

this isn't homework filter, I promise: what is the cosine of 30?

How do I reduce something by -800% when I'm working with a scale between -99% and 99%? [more inside]

Help me figure out how to do cluster analysis on discrete data. [more inside]

Calling all math lovers! Great mathematics toys/gifts for adults? [more inside]

I'm interested in learning everything there is to know about waves. Sound waves, ocean waves, light waves, electromagnetic waves, waves in math, in economics, brain waves, etc, etc.... [more inside]

I'm taking a calc-based physics class as well as a calculus class. The last time I took a math class was 5 years ago and I would love some refresher resources - or even better, an intensive algebra-trig-precalc course. Are there any online or in the DC area? [more inside]

Can someone explain to me why there are 169 starting hands in poker? [more inside]

Mathematical sequences challenge. Need your help. [more inside]

How to smooth a histogram or unclump a dataset. [more inside]

I've got a long function with two variables, encoding - I suspect - a hidden message. Most likely, the message is somehow encoded in the function's roots. Is there any good software to plot a function in two dimensions and only show the points where it evaluates to zero? [more inside]

How many different ways can you hold hands with someone? [more inside]

I studied mathematics and some computer science as an undergrad, and I loved it. I feel that my real passion, however, is in experimental sciences or engineering. What are some graduate school options for me? [more inside]

Help me teach myself enough about probability to properly balance the board game I want to design. [more inside]

I need help understanding the "principle domain" (a term only my professor seems to use) of a polar function. That is, how do I find the smallest value delta such that [0,delta] plots all of the unique points on the curve; any values greater than delta re-trace points. I suspect that if MeFi could identify the more common name for this, uh, procedure, I'd be set.

36 people total, meeting in groups of 6. After 5 minutes, the groups shuffle into completely new groups. How many "rounds" can we go without people meeting with someone they've already met? [more inside]

Looking for biographies of scientists or mathematicians. [more inside]

I have 232 facebook friends, and six of them share a birthday in common (not 6 different pairs of people on the same birthday, but 6 out of the 232 were born on the 17th of July. Now, I know it only takes 23 random people to get a 50% chance of at least ONE birthday collision, but how the heck do I figure out the odds on this one? Is this a significant anomaly, or reasonably expected? My one stats class was entirely too long ago....

Help me find a career path or course of study that combines the topic I'm interested in (obesity and public health) with the methods I enjoy (applied math and computer science). [more inside]

I am a teacher at a high school that will be providing netbooks to every single student this fall. I am trying to consider ways that this will be helpful in the classroom, particularly in a math classroom. If you knew that every child in the classroom had their own netbook and the classroom were wireless, what would you like to see happen that would help students learn math? Please fire away ideas. All are welcome - whether brainstorm ideas or maybe you know of a particular website or web-based tool that would help students. Particularly, I'd like to assess students' progress as they learn as well as to provide them multiple ways to learn/experience the fundamental concepts in a math course. What would YOU have wanted if you had a laptop and wireless in high school? Thanks for your suggestions!!!

Metafilter: Would you help me write this thank you letter? More details inside. [more inside]

Math nerds, help! I need to figure out what's the better option for acquiring a car using borrowed money. [more inside]

I've started learning to program and I'm enjoying it well enough, but I'm not fantastic at math. Do I have a future as an employable programmer? [more inside]