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5 votes

Function which creates the sequence 1, 2, 3, 1, 2, 3, ...

answered Mar 7, 2018 at 1:44

4 votes

Expected Number of Single Socks when Matching Socks

answered Jul 7, 2017 at 16:21

2 votes

What are the interesting applications of hyperbolic geometry?

answered Feb 12, 2021 at 4:34

1 vote

Exterior/wedge product of two vectors as an area?

answered Feb 13 at 13:19

1 vote

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Maximum entropy distribution with given mean, variance and skewness?

answered Nov 14, 2023 at 14:49

1 vote

Is there a single term that generalizes the names of the individual vector and scalar types in a multivector?

answered Feb 12 at 13:46

1 vote

Functions that are always less than their derivatives

answered Jul 29, 2017 at 15:37

1 vote

How do I convince my students that the choice of variable of integration is irrelevant?

answered Jan 21, 2014 at 23:10

1 vote

What is the geometrical action of a skew-symmetric matrix on an arbitrary vector?

answered Sep 1, 2016 at 22:38

1 vote

sinc in 2d: how to interprete this in spatial domain?

answered Aug 15, 2018 at 11:14

1 vote

Why is the number of ways of choosing $0$ items from $n$ items $1$?

answered Oct 23, 2018 at 7:47

1 vote

Is it possible to calculate a single frequency bin in $O(\log N)$ time (considering the $N\log N$ performance of FFT algorithms)?

answered Sep 7, 2019 at 19:09

1 vote

Does a matrix of rank $r$ always contain an invertible submatrix of size $r\times r$?

answered Aug 27, 2020 at 12:50

0 votes

On the matrix representation of a composition of Möbius transforms

answered Feb 22, 2023 at 22:04

0 votes

Equation for a smooth staircase function

answered Jan 13, 2022 at 12:15

0 votes

The inverse map of the stereographic projection

answered Aug 25 at 21:47

0 votes

Proper loss function for this robust regression problem

answered Oct 24, 2023 at 17:33

0 votes

Suppose $p$ is prime and $m \gt 0$ and $n \gt 0$ and $m \equiv n \pmod{p-1}$. Prove that $a^m \equiv a^n \pmod{p}$ for all $a$.

answered Mar 8, 2021 at 20:55

-1 votes

Can I change the order of a functional dervative and a partial derivative?

answered Sep 28, 2021 at 16:31

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19 Answers

Function which creates the sequence 1, 2, 3, 1, 2, 3, ...

Expected Number of Single Socks when Matching Socks

What are the interesting applications of hyperbolic geometry?

Exterior/wedge product of two vectors as an area?

Maximum entropy distribution with given mean, variance and skewness?

Is there a single term that generalizes the names of the individual vector and scalar types in a multivector?

Functions that are always less than their derivatives

How do I convince my students that the choice of variable of integration is irrelevant?

What is the geometrical action of a skew-symmetric matrix on an arbitrary vector?

sinc in 2d: how to interprete this in spatial domain?

Why is the number of ways of choosing $0$ items from $n$ items $1$?

Is it possible to calculate a single frequency bin in $O(\log N)$ time (considering the $N\log N$ performance of FFT algorithms)?

Does a matrix of rank $r$ always contain an invertible submatrix of size $r\times r$?

On the matrix representation of a composition of Möbius transforms

Equation for a smooth staircase function

The inverse map of the stereographic projection

Proper loss function for this robust regression problem

Suppose $p$ is prime and $m \gt 0$ and $n \gt 0$ and $m \equiv n \pmod{p-1}$. Prove that $a^m \equiv a^n \pmod{p}$ for all $a$.

Can I change the order of a functional dervative and a partial derivative?