Yaroslav Bulatov's user avatar
Yaroslav Bulatov's user avatar
Yaroslav Bulatov's user avatar
Yaroslav Bulatov
  • Member for 13 years, 6 months
  • Last seen this week
15 votes

How do Lagrange multipliers work to find the lowest value of a function subject to a constraint?

7 votes

Local variables when defining function in Mathematica

6 votes
Accepted

On the existence of closed form solutions to finite combinatorial problems

5 votes

Mathematica's "Solve" and filtering out the one real (non-complex) solution

5 votes

Best way to exactly solve a linear system (300x300) with integer coefficients

3 votes
Accepted

Union on Graph Data in Mathematica

3 votes

Getting edge cut from eigenvector of adjacency matrix

3 votes

Neural Network matrix calculus

3 votes
Accepted

What is the maximum number of rows of a random matrix that is not full rank?

2 votes

How to solve transcendental equations with Mathematica 7?

2 votes

Sorted eigenvalues decay with a nice law: is this a coincidence?

2 votes
Accepted

Automated generation of a parametric plot?

2 votes

Name of this matrix product?

2 votes

Are there variations on least-squares approximations?

1 vote

How to calculate the expected distribution of results using random numbers?

1 vote

Going back from a correlation matrix to the original matrix

1 vote

Higher dimensional analog to planar graphs?

1 vote

Simplifying Presentation of Solutions in Mathematica

1 vote

Operator norm of $\frac{x^TW^Tx\cdot I-Wxx^T}{||Wx||^2}$.

1 vote

For $A\in \mathbb R^{n\times n}$, when is $A+A^T$ positive semi-definite?

1 vote

Spectral radius of $\text{diag}(s)+s1'$

1 vote
Accepted

Would adding a symmetric positive semi-definite matrix to a non-symmetric positive definite matrix increase the spectral radius?

1 vote

Cholesky decomposition of the inverse of a matrix

1 vote

Relating the SVD of $AB^T$ and $B^TA$

1 vote

Integral approximation of $\sum_{j=0}^\infty \frac{(-2)^j}{\exp j }$

1 vote
Accepted

When is $A+A^T$ positive definite?

1 vote

Value of $E_{A,y}[\cos(A^T y,A^{-1} y)]$ for Gaussian $A,x,y=Ax$

1 vote

Why is $AA^TAA^TAA^TAA^T$ larger than $AAAAA^TA^TA^TA^T$ for Gaussian $A$?

0 votes

Closed form solution to matrix equation

0 votes

Discrete Fisher Information