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Laray
  • Member for 5 years, 5 months
  • Last seen this week
  • Germany
54 votes

Is it possible to have a $3 \times 3$ matrix that is both orthogonal and skew-symmetric?

4 votes

For a 3 sets' tennis game, would you bet on it finishing in 2 sets or 3 sets, assuming each player has an equal probability of winning a set?

4 votes
Accepted

Eigenvalue decomposition of non symmetric matrix

4 votes
Accepted

singluar values unchanged when multiplied with an orthogonal matrix?

4 votes

Why Projection Matrices are singular

4 votes

Eigenvalues for a Real Symmertic Matrix

4 votes

Behaviour of $x^n$ for very large $n$?

3 votes

Simplify $\frac{\sqrt{24}}{8}$

3 votes

What is the probability that sum of two natural numbers is divisible by 4?

3 votes

Making a non-diagonalizable matrix diagonalizable with an small perturbations

3 votes

derivative of the hessian?

3 votes
Accepted

Any conditions that makes eigen values of a real square matrix real and distinct

2 votes

Singular Value Decomposition of a big rectangular matrix

2 votes
Accepted

Euclidean distance question

2 votes
Accepted

Why when $D^2 = D$ is D not the identity matrix

2 votes

Find all matrices $X$ such that $ABXB^tA^t=I$

2 votes

Dirac Delta Function Integral results in Heaviside?

2 votes

Finding eigenvector by taking the square of a matrix

2 votes
Accepted

Definition of 'soft' matrix rank

2 votes
Accepted

How to find the $f(3)=y$ with given points?

2 votes
Accepted

Curve Fitting: Multidimensional input

2 votes

Having trouble creating 3d graph in matlab?

2 votes

Matrix diagonalization: what if the (basis) vectors are not orthogonal?

2 votes
Accepted

Eigenvalue identity

2 votes
Accepted

Solve a matrix equation of the form $A=XB$

2 votes
Accepted

Second order equation in a system of linear equations

2 votes

Maximum value of $A-\lambda P_v \succeq 0$, where $A$ is a positive symmetric matrix and $P_v$ is a projection onto a unit vector

2 votes
Accepted

Why does $x^Tx=||x||^2$?

2 votes
Accepted

Fast way to approximate $U_1 X_1 U_1^T$ + $U_2 X_2 U_2^T$?

2 votes
Accepted

A matrix with imaginary entries satisfies the property?