Mathematics Stack Exchange
Mathematics Stack Exchange

Questions tagged [education]

For math questions related to the teaching and learning of mathematics. Note that Mathematics Educators Stack Exchange may be a better home for narrowly scoped questions on specific issues in mathematics education.

This tag is for questions that are primarily about mathematics, but are related to mathematics education. Also consider using the or the tag. On the other hand, questions that are primarily about teaching and learning mathematics would be a better fit for MathEducators.SE.

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How to create a counter example of a matrix with non orthogonal eigenvector?

I am trying to understand this orthogonal eigenvectors $$T = \begin{pmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \\ \end{pmatrix}$$ let $$u = \begin{pmatrix} 1 \\ 0 \\ 1 \\ …
user4951
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E convergence set in $C^n$ for example

Definition. A subset E of $\mathbb{C}^{n}$ is said to be a convergence set in $\mathbb{C}^{n}$ if $E=Conv(f)$ for some divergent series f of Class $(1,0)$. what is for example $E$?
Odilbek Rahmonov
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Solution of equation $z=a((x-a)e^{2x/a}+x+a)$

I want to solve the equation for $x$ $a((x-a)e^{2x/a}+x+a)-z=0$ Conditions on $a$ and $z$ are: $a,z>0$ and both real. I made some research but couldn't find a lot. Maybe something with the Lambert W function? In general, I'm interested in solutions…
user50473
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generalization of the Pythagorean theorem

In school, students learn that in a triangle ABC, ACB is a right angle if and only if AB^2=AC^2+BC^2. This deep relation between geometry and numbers is actually only a partial result as one can say much better : the angle in C is acute if and only…
curious
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how to solve y^2x^2

Can someone help me with the steps how to solve those inequistins? y^2x^2 My wrong solution: y^2>x^2 /sqr y>x or y>-x or -y>x or…
Stav Alfi
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Getting a masters in Mathematics

I'm not entirely sure that this is the right medium for this question, so feel free to close it at will. I'm basically wondering where there are some strong programs to get a masters in mathematics. While finding a list of these isn't so difficult,…
AsinglePANCAKE
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By taking a quick glance, do you think this mathematical book is educational and credible?

Long story short, when I was in High school I thought that Mathematics were not for me and that's why I had a hard time studying but as I grew I realized that I was just too lazy to study it and I would like to correct that mistake. I have begun…
Onyx
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$x-12\%=100$, find $x$

I need to pay someone after deducting $12\%$ commission. I want to pay him round amount of $10,000$ What is the formula to establish the $112\%$ figure so that once I have deducted my comm I will be left with $10,00$. I know the answer is not…
Maurice
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Suggestions on Progressing in (Meta)Mathematical Development

[Straight to the Point] I would really appreciate any suggestions on self-study materials that relate to math, logic, and/or the philosophy of both. Also, any thoughts or suggestions that you may have in regards to organizing such a self-study so…
Cody Rudisill
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in nested brackets which would be outermost bracket

i wanna know that in an algebric equation of 2 level nested brackets which format of nested bracket is correct {4[3+5(3+2)]} [4{3+5(3+2)}] is curly would be outermost or square
Abdus Salam Mazhar
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How to calculate percentile?

I am reading a document issued by UK Gov about minimum salary for work visa, it is using word percentile, which I don't understand, Could anyone explain what would be the 50th or 75th percentile IF, 10th percentile = 24,000 25th percentile =…
Mathematics
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Cartesian Product how can this be used in real life situations

I am learning about the cartesian product as defined by The New Oxford American Dictionary as: the product of two sets: the product of set X and set Y is the set that contains all ordered pairs ( x, y) for which x belongs to X and y belongs to…
Robert
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simple SAT question. confused.

My friend selected option B, I did C. We're confused. Can someone please explain this for my friend?
James
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How big a text file will be for a wordlist composed of 10 HEX characters given certain conditions?

While discussing with another friend the insecurity with some wifi systems against dictionary attacks we couldn't reach a common ground on how big a WPA wordlist dictionary would be for the most common password we work with here. Not knowing if my…
Yonez
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Undergraduate in Biomedical Engineering wants to pursue a Graduate Math degree.

I have a bachelor's degree in biomedical engineering, but I am looking to go to graduate school for mathematics; I know that the switch would not be easy (obviously an undergrad in math would've been best). I am looking for advice on what courses I…
Hardik Desai
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