G. Fougeron's user avatar
G. Fougeron's user avatar
G. Fougeron's user avatar
G. Fougeron
  • Member for 9 years, 3 months
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5 votes
Accepted

If $p$ is negative, is it true that $\ln(p^2) = 2\ln(p)$?

4 votes
Accepted

When does a real, positive definite matrix have positive entries?

4 votes

Finding a matrix interpolation

3 votes

For real numbers $z$ and $w$, $|(1+z)(1+w)-1| \leq (1+|z|)(1+|w|)-1$.

2 votes

Find the integer root of the logarithmic equation: $\log_2\left(\frac x5\right)+\log_x\left(\frac 25\right)=\log 4$

2 votes

Meaning of triangle symbol

2 votes
Accepted

Limit of vector sequence

2 votes
Accepted

What are Fletcher-Reeves and the Wolfe inexact line search?

2 votes
Accepted

Undertsanding Laplace Transform output

2 votes
Accepted

Does the series converge: $\sum_2^\infty\frac{\log n}{n(\log \log n)^2}$

2 votes

What's gone wrong in my example to show that $\frac{\partial}{\partial \underline c}(A\underline c) = A$?

2 votes

The recurrence $a_k(n) = \sum_{0\leqslant j<n} a_{k-1}(n+j)$

2 votes

Limit in combination with an infinite series

1 vote

Determinant of a Matrix 2

1 vote
Accepted

Monotonicity of a fraction.

1 vote
Accepted

Positive weights in Radial Basis Functions

1 vote

The range of arc-cotangent function & arccot(-1).

1 vote

Does Runge Kutta need future state of system?

1 vote

Interchange of derivatives

1 vote

Decelerate function to match with the example

1 vote
Accepted

Why is $\lim_{t \to 0} \frac{f(x + t(y-x)) - f(x)}{t} = \nabla f(x)^T\cdot (y-x)$?

1 vote
Accepted

Eigen decomposition of Householder operator

1 vote

Is the definition of angular momentum $\vec{L} = \vec{r} \times \vec{p}$ rigorous?

1 vote
Accepted

prooving volume formular for simplices

1 vote

Polynomials and Inner Product

1 vote
Accepted

Under what conditions, the following equation may not hold: $A = B X$, where $A \in M_{m,n}$ and $B \in M_{m,p}$ are given, and $X \in M_{p,n}$?

1 vote

What is the best ODE solver for stability and speed?

1 vote

Show the convergence of the recursive sequence without computing it's limit

1 vote

Find the dimension of the system with equations and variables

1 vote
Accepted

Endomorphisms that commute with a specific, non-diagonalizable endomorphism