Skip to main content
SSF's user avatar
SSF's user avatar
SSF's user avatar
SSF
  • Member for 10 years, 3 months
  • Last seen more than 2 years ago
27 votes
2 answers
17k views

Knight returning to corner on chessboard -- average number of steps

8 votes
1 answer
2k views

Number of isotropic tensors of rank N

4 votes
1 answer
2k views

Multiple self-convolution of rectangular function - integral evaluation

4 votes
0 answers
2k views

Taylor expansion of a power function

4 votes
1 answer
163 views

Definite integral $\int_0^{\pi/2} \frac{\sin^{1/3}(x) \, \mathrm{d}x}{\sin^{1/3}(x) + \cos^{1/3}(x)}$

2 votes
2 answers
833 views

Standard deviation for measurements with errors - least squares?

2 votes
1 answer
203 views

Free wave behaviour of $\frac{\partial^2 \phi}{\partial x^2} - \frac{\partial^2 \phi}{\partial t^2} = \lambda |\phi|^2 \phi$.

2 votes
1 answer
181 views

Minimum distance between 2 points on 2 arbitrary hyperplanes

1 vote
0 answers
48 views

Numerical method for wave equation with nonlinear forcing in 1+1 D

1 vote
2 answers
91 views

Evalutation of an integral

1 vote
1 answer
496 views

A dynamical system of differential equations - periodic solutions?

1 vote
1 answer
116 views

Coherent states - operator algebra problem with physics motivation

1 vote
2 answers
124 views

Comparison of two collections of 4-tuples using combinatorics - more complicated version

1 vote
1 answer
51 views

Will a vector rotate back to itself under unitary rotation?

0 votes
0 answers
24 views

Hypothesis testing - comparing data with a function

0 votes
1 answer
1k views

Gaussian integral for a vector and a function - how to evaluate

0 votes
0 answers
672 views

$1 / (2 \pi)$ factor in Fourier transform

0 votes
2 answers
201 views

Comparison of two sets of 4-tuples using combinatorics

0 votes
1 answer
4k views

Second derivative numerical estimate - stability and approach