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223 posts tagged with mathematics.

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223 posts tagged with mathematics.

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## How to untie a trefoil knot?

Mathematics/Topology: how to untie a trefoil knot in four dimensions? [more inside]

## How do you place students into calculus courses?

Attention math teachers: what processes does your college/university use for placement into Calculus courses? [more inside]

## Math ties?

Any good math or physics neckties? [more inside]

## What happened to my brain? Is it too late for me to increase my intelligence?

Is it really possible for me, at 42, to increase my IQ/fluid intelligence/learning ability? [more inside]

## ¡==¿ !?

What does "¡==¿" mean? [more inside]

## After all these implements and texts designed by intellects we're vexed to find evidently there's still so much that hides.

I like math! I took an introductory undergraduate math course on DSP and, well, I want more. [more inside]

## Handicapping Reality

How do I learn and practice handicapping skills? [more inside]

## CS Math books

I am a GIS college student looking to develop my skills in programming, particularly in Python. For starters, I need to wake up my dormant math skills. What mathematics-for-programmers books, or general Computer Science books, should I be looking for? [more inside]

## Did Anyone Invent Some New Math Stuff So They Could Solve A Problem Which Then Lead To a Technological Breakthrough?

Can you cite any examples where a technological breakthrough wasn't possible until there was some sort of mathematical breakthrough? [more inside]

## Mathematics help for 6yr old son

Help me help my 6yr old with maths. [more inside]

## From teaching to tech - updating resume and skills

I have a Master's in math, and would like to get a job in the tech industry or a laboratory, but my resume is very teaching-oriented. I would like tips on retooling it to make myself more attractive. I also have several months to improve my skills. [more inside]

## A simple model of the dynamics of whhaaa?

Physicists, or someone who is familiar with physics or mathematical models, please help me interpret "a mathematical model of social group competition with application to the growth of religious non-affiliation". I have never heard of Sociophysics before today. [more inside]

## math finance text?

Any recommendations for a good graduate level text book for an introduction to mathematical finance course? [more inside]

## Never been near a university, never took a paper or a learned degree.

Why should I study math? [more inside]

## How should I best use my time to transition out of academia? (I'm in math.)

How should I best use my time to transition out of academia? (I'm in math.) [more inside]

## Art in the 4th dimension?

Do any visual artists work in 4 or more dimensions? Who are they, and what does their work look like? [more inside]

## How much does it weigh now?

A 600-pound, 24-foot-long retractable movie screen is suspended from two chains attached to an overhead pipe. I want to get it down. Come inside for the details. [more inside]

## Quantitative finance jobs for a pure mathematician

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?

## Dyscalculia and logic class

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

## Recommend me a book on Cryptography/Cryptanalysis!

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

## How do you use paired comparisons to rank a large set of items?

What strategies give useful aggregate ranking information when asking people to pick a favorite between two items selected at random (or close to random) from a large set of possible items? [more inside]

## Why doesn't the OED have better coverage of mathematical terms?

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]

## What's the textbook for maths teachers?

Teaching filter: What's the best book or online resource for a trainee maths high school teacher, you are aware of. [more inside]

## Making math fun!

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

## Careers for Pure Mathematicians

What are you, as a graduate of pure mathematics, doing? [more inside]

## An awesome vector geometry teaching website

I'm trying to find a website that teaches vector mathematics in lesson form. [more inside]

## Regular tessellations of Euclidean spaces

MathFilter: Is there a relationship between the number of dimensions in a Euclidean space and the number of regular tessellations of that space? [more inside]

## Economics for physicists

Can anyone recommend a book which explains the basics of economic theory in a way accessible to physicists/mathematicians? [more inside]

## ount all the ways that 15 objects can be put into four piles so that each pile has a different number of objects in it.

"Count all the ways that 15 objects can be put into four piles so that each pile has a

**different**number of objects in it." Is there a smart general method for solving problems like this? Feel free to assume uniqueness/non-emptiness of the piles if it helps. (Not homework)## What do you love about zero?

My favorite number is 0. I have many reasons for this, but I want more. [more inside]

## I am sick of having to say "I'm not good at math."

I have always had difficulty with mathematics. Now I'm in my mid-thirties and have gone back to school to study engineering. Things are not going appreciably better than they did the first time I went to university. What can I do to fill the gaps I have and become a skilled problem-solver? I want to go from being a C to being an A student. [more inside]

## lefty mathematics

my son is left handed and is finding it frustrating when doing his maths homework, because he continually needs to stop writing to lift his hand and look at the equation he is working on.
Any lefty mathy mefites with advice on how you have have learned to deal with this? [more inside]

## Do we have to know Cramer's rule for the exam?

Why do people care about Cramer's rule? [more inside]

## Why is the name "Szőkefalvi-Nagy" sometimes abbreviated to "Sz.-Nagy"?

Why is the name "Szőkefalvi-Nagy" sometimes abbreviated to "Sz.-Nagy"? [more inside]

## Two numbers walk into a set of brackets...

Looking to teach myself the basics (and perhaps the not-so-basics) of set theory... How do I do it? [more inside]

## PhDespair

About to obtain a PhD in mathematics, and questions about employment. [more inside]

## I want to retrain as a mathematician, I already have a masters in computer science, what's the best way forward?

I want to retrain as a mathematician, I already have a masters in computer science, what's the best way forward? [more inside]

## What basic statistics concepts do I need to understand web analytics?

I'm registered for a Web Analytics class. A prerequisite is "Familiarity with basic concepts of statistics." I'm not a math person and never studied statistics. Which basic statistics concepts should learn before this class? Are there any comic books, videos, or fun resources that would help me learn? [more inside]

## What is the next step of this Kenken?

What is the next step of this Kenken? [more inside]

## What are the top academic journals in various fields?

What are the best academic journals in each field? [more inside]

## Name this Mathematics Textbook series

Recently, someone described a 10-volume mathematics textbook series to me. The books were written by a single author, an engineer with a name that sounded Greek, and came with full worked solutions to every single problem, making them ideal for self study. Unfortunately, they could not remember its title, and my attempts to find it with Google and Amazon have failed.
Has anyone come across this series?

## Help me sample accurately!

Please provide me with an *effective*, and statistically sound, table/chart listing suggested sample size guidance for associated population size [more inside]

## Business optimization eek!

I've got these 2 math problems that are driving me crazy. Business optimization. Please help. [more inside]

## Help me learn to typeset equations like it was my job. (Why? Because it is.)

I am looking for a math typesetting style guide. By this I don't mean the kind of stylesheet for journal submissions that says "Be sure to use the blah-blah-blah LaTeX package and the XYZ equation environment, and our army of editorial assistants will tie up the loose ends and knock off the rough edges." (Why not? Because my advisor is involved in starting a new journal, and suddenly my labmates and I

*are*that army of editorial assistants.) [more inside]## Rates of success?

Statistics question: is it possible to test sets of cumulative data for significant differences in rate? [more inside]

## Countdown

Is there an enumeration of complete chess games? [more inside]

## Math Symbol Mystery

I've never seen this mathematical symbol used this way before. Can anyone tell me what it means? [more inside]

## Can I get into grad school in math?

Can I get into a funded Math Master's or PhD program? I'm graduating from a 4-year college with my B.S. this Spring, and I'm in my mid-30's. I have good GPA at this school (about a 3.6, up to about a 3.8 in math courses specifically) and good GRE scores (720 V / 780 Q), but I have dropped a lot of courses (I've worked full time over the years while getting my degree), and back in the mid-90's I flunked out of the first university I went to. [more inside]

## Uh...hang on, just give me a minute.

What is the most important scientific question of our time? [more inside]

## Calculating Probability Over Several Attempts?

How do you multiply probability across multiple chances? Let's say that every time you roll a die, you have a one-in-six chance of having five come up. What math would you perform to come up with the probability of five coming up at some point with the dice being rolled two times? Three? Five? Ten? (I'm using dice as a shorthand here: the actual probability figure I'm working with is 24%.)