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Widawensen
  • Member for 8 years, 1 month
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29 votes
1 answer
2k views

Matrix generated by prime numbers

24 votes
2 answers
2k views

Equation with solution in prime numbers

14 votes
8 answers
3k views

Numbers defined with matrices

9 votes
3 answers
910 views

A non-Vandermonde matrix with Vandermonde-like determinant?

9 votes
3 answers
11k views

Eigenvalues for a product of matrices

9 votes
2 answers
15k views

Commutativity of matrix and its transpose

8 votes
2 answers
1k views

Additive rotation matrices

8 votes
1 answer
4k views

Patterns for eigenvalues of Vandermonde matrix

8 votes
1 answer
328 views

Combinatorics for a 3-d rotating automaton

8 votes
1 answer
1k views

Prime numbers in Fermat's little theorem

7 votes
1 answer
202 views

How many colors in 3-d space to paint boxes?

7 votes
1 answer
2k views

List of matrix properties which are preserved after a change of basis

6 votes
2 answers
4k views

Symmetrical and skew-symmetrical part of rotation matrix

6 votes
2 answers
878 views

Eigenvectors for a sum of diagonal and anti-diagonal matrices

6 votes
2 answers
6k views

Rational values of trigonometric functions

6 votes
3 answers
9k views

Integer matrices with determinant equal to $1$

5 votes
2 answers
1k views

Number of possible zero entries in orthogonal matrices

5 votes
3 answers
1k views

A certain unique rotation matrix

5 votes
2 answers
1k views

Fixed and current axes of rotation

4 votes
1 answer
3k views

Eigenvalues for symmetric and skew-symmetric part of a matrix

4 votes
2 answers
449 views

Cayley-Hamilton equation for a given matrix $A$ and other matrices

4 votes
2 answers
2k views

Mnemonics for linear algebra

4 votes
2 answers
12k views

Imaginary eigenvalues

4 votes
2 answers
219 views

$\pi$ and $e$ as coded trajectories

4 votes
2 answers
800 views

The relation between axes of 3D rotations

4 votes
0 answers
135 views

Great mathematical fusions in math history

4 votes
2 answers
466 views

Orthogonal matrix with single $0$ entry

4 votes
1 answer
5k views

Product of skew symmetric matrices

4 votes
0 answers
259 views

Polynomial with square roots of primes

3 votes
2 answers
3k views

Existence of square root of a matrix