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42 posts tagged with mathematics *and* resolved.

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## Counting 101 (and beyond)

Our three year old LOVES to say his letters and numbers. When he gets to Z, he triumphantly (and accurately) announces "and that's all the letters!" When he gets to 100 he proudly informs us, "that's all the numbers!" I've tried to tell him about 101, 102, etc., but he does not believe me. He would believe it if a YouTube video or app told him so. Any suggestions? (Yep, I know this is not a big deal. I just like watching the light bulb go on when he realizes just how big the world is.)

## Design and audience

Hi, parents of young children. I've been commissioned to design and format a series of small books aimed at you and your kind. How do you want it to look? [more inside]

## How much and what type of math is beneficial to programming?

How much and what type of math is beneficial to programming? What are the prerequisites / pathways to grokking this kind of math? [more inside]

## What are inter-disciplinary and atypical uses for math MSc?

I have just completed my MSc in mathematics in Europe. I do enjoy math, but I spent my uni years feeling like a autodidact hippie marooned on an island full of Mr and Mrs I-Want-A-Good-Job. My main interests revolve around humanities (literature/history/anthropology) and economics (but not finance), and instead of starting a "stable" well-paying career I dream about something inter-disciplinary. I am very open to earning little money and relocating just to do kind of work that engages those skills. What are some random uses of my degree? [more inside]

## Mathematics for the innumerate

I'm developing a Data Design curriculum for Art college students, and I'd like to teach some basics of maths and statistics in ways that the non-numerically inclined will understand. For this, I need some simple explanations for complicated ideas. [more inside]

## I'm having trouble understanding likelihood ratios and diagnostic tests.

I'm struggling to understand likelihood ratios (LR) in the context of diagnostic tests, and why a positive LR is influenced by the sensitivity of the test. [more inside]

## Mathematics-related accessories and clothing for women

I'm learning to accessorize! I'd like to find some little mathematics-related accessories, kind of like the women's equivalent to a (relatively subtle) mathematics tie or cufflinks, that are work (think secondary school educator) appropriate. Simple and relatively understated is preferred. I'm also interested in clothing that would be work-place appropriate (not t-shirts!). I had a lot of fun with my regex skirt from XKCD a few years ago. [more inside]

## What does a mathematician do all day?

I'm wondering, after breakfast, and a shower, and a commute, and coffee - what is next? [more inside]

## Make my child a math genius

My son is now 15 months old, and I would like for him to have the best possible mathematics education. What should I be doing now and what sort of long-term plan should I have in order to help him both to learn and to love mathematics? (He doesn't have to be a mathematician when he grows up, but really knowing mathematics is non-negotiable.) [more inside]

## 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]

## Pure math isn't even fun.

I have a very serious problem: I can't stop thinking about mathematics and it's interfering heavily with my sleep. [more inside]

## Approximating Natural Log By Hand

Calculating/approximating ln(x) 'by hand'? [more inside]

## Is joint parameter estimation always strictly better than individual parameter estimation?

Is it true that it is always better to estimate parameters jointly, even when they are completely unrelated? [more inside]

## Discrete mathematics for idiots?

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]

## What can I add to my math degree to improve my job prospects?

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]

## How to untie a trefoil knot?

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

## 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]

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

Why should I study math? [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]

## 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]

## 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]

## 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]

## Math Symbol Mystery

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

## You ate ALL MY PIZZA!

Is there a mathematical, economic, logical or game-theory name/description for the following scenario? [more inside]

## What can I do with a Master's in math?

I have been attending graduate school in mathematics for the last 3 years, in hopes of getting a Ph.D. It hasn't exactly worked out - I'm taking my Master's and getting out of here. What can I do now? [more inside]

## The science of suckiness

I want to calculate the mean of a matrix, but I don't want a value, I want co-ordinates. The following math question has lots of terminology that I'm not qualified to use i.e. most of it is wrong. I hope you can see through this and help me. I will be using the words

*matrix*,*mean*and*transformation*without fully understanding them. For this I apologize. [more inside]## How to keep material organized while teaching?

How do I keep track of things I want to cover in the future in the course I'm teaching? [more inside]

## Maximizing a function over orthogonal matrices

Maximizing a function over orthogonal matrices, or: solving polynomial order 2 systems. Help me out or point me to a better forum / listhost. [more inside]

## Picture a Venn diagram with 3 circles: LaTeX, Emacs, Mac. I'd like to live in the intersection.

Mac users who write LaTeX documents in Emacs (with or without AucTeX), please tell me about your workflow. [more inside]

## Seeking reading material before jumping into a master's in applied math...

Starting this fall, I plan on taking some preparatory undergrad coursework with the intention of eventually applying to a master's program in applied mathematics. I am seeking suggestions for reading material concerning the field of mathematics in general, both as a refresher and as insight into current focus areas and work being done. As a working engineer, my situation and background might be a bit different from most considering this route... [more inside]

## Postscript code for epicycloid?

I want a true vector-based (i.e., not merely a series of thousands of line segments) Postscript or Illustrator file of an epicycloid where a=5, b=2. [more inside]

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