spektr's user avatar
spektr's user avatar
spektr's user avatar
spektr
  • Member for 9 years, 7 months
  • Last seen this week
  • United States
48 votes
Accepted

The easiest way to find intersection of two intervals

25 votes
Accepted

Is it possible to have a career in SciComp without contributing to arms research?

15 votes
Accepted

What is this regularization technique?

14 votes

C++ Best practices for dealing with many constants, variables in scientific codes

10 votes
Accepted

Going back in time in an initial value problem

10 votes
Accepted

Symbolic computation vs. numerical computation

8 votes

Why should non-convexity be a problem in optimization?

8 votes

Will the numerical solving of the differential equation be wrong if I take the step too small?

7 votes

Derivatives Approximation on non uniform grid

7 votes
Accepted

Learning parameters of noise and filter coefficients from data where data and noise both have Gaussian distributions

6 votes
Accepted

Looking for an accurate algorithm to find the area of a oscillatory function

6 votes
Accepted

Advantages and disadvantages of space-time finite element methods

6 votes

Implementation of the Jacobian-free Newton method

5 votes
Accepted

Gradient of function after renormalization of variables

4 votes
Accepted

Discretizing time term for PDEs

4 votes

How to derive the stability of time stepping schemes?

4 votes

Choice of Newton-Cotes formulae for regularly gridded multi-dimensional data

4 votes
Accepted

Galerkin method for a system of nonlinear PDEs

4 votes
Accepted

What is this discrete optimization problem called?

4 votes
Accepted

How can you calculate catastrophic cancellation error?

3 votes

BFGS Constrained Optimization Failure Due to Precision Loss

3 votes

Getting Extremal Rays of Cone

3 votes

Why do I still obtain a unique solution with one-sided formula when b.c. isn't enough?

3 votes

Calculating the Jacobian for a function containing a derivative

3 votes
Accepted

For finding the track of an object through space(3d) over time, what is the correct slope equation to use in the algorithm?

3 votes

Algorithm suggestion for PDE - example: heat equation

3 votes

Solving $\sum_r \frac {\mathrm B_{z_r}(a+m_r+1,b)}{\mathrm B_{z_r}(a+m_r,b)}=K$ for $a$ and $b$

3 votes
Accepted

Why are upwind schemes stable in convection flow calculation?

3 votes
Accepted

Help implementing finite difference scheme for heat equation

3 votes
Accepted

Equation of motion by RK4 method