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Lutz Lehmann's user avatar
Lutz Lehmann's user avatar
Lutz Lehmann's user avatar
Lutz Lehmann
  • Member for 10 years, 6 months
  • Last seen this week
33 votes

C, Julia, Python, Maxima, Mathematica, ChatGPT and numerical errors

13 votes
Accepted

Why is the central difference method dispersing my solution?

11 votes

Why are log and exp considered 'expensive' computations in ML?

10 votes
Accepted

Why is velocity Verlet better than Verlet for gravity if it has a worse order of magnitude for the error term

9 votes
Accepted

Solving Schrodinger Equation with finite element and Crank-Nicolson?

9 votes
Accepted

Numerical computation of Lyapunov exponent

8 votes
Accepted

Polynomial approximation for floating-point arithmetic

7 votes
Accepted

Convergence-test for ODE approximates wrong limit

7 votes

Energy conservation in RK4 integration scheme in C++

7 votes

Real-world applications of eigendecomposition?

7 votes

Numerical implementation of ODE differs largely from analytical solution

6 votes
Accepted

Using backward and forward Euler method to solve a certain stiff ODE

6 votes
Accepted

Python bifurcation diagram of seasonally forced epidemiological models

6 votes
Accepted

Support Vector Machines as Neural Nets?

5 votes
Accepted

scipy odeint: excess work done on this call and very sensitive to initial value

5 votes
Accepted

Finding the parameters of a function via curve fit

5 votes
Accepted

N-body problem with differents solvers (RK2, RK4, Euler symplectic, Stormer-Verlet) : planets drift to infinity

5 votes
Accepted

Error in Simpson's 3/8 rule is higher than that of Simpson's 1/3 rule

5 votes

Solving IVP backward in time via python

5 votes

Is my differential equation solving code wrong?

5 votes
Accepted

What happens to the $O(\cdot)$ terms when we implement the Leapfrog Integration algorithm in a programming language?

5 votes

What evidence exists to suggest that computational science produces more information than studying real phenomena as they are?

5 votes

Why do problems arise in FFT for smaller value of df in Python?

5 votes
Accepted

Trying to model a simple second order ODE

5 votes

What's a nice simple PDE to play with in Matlab?

5 votes

Test of 3rd-order vs 4th-order symplectic integrator with strange result

5 votes

Evaluating large determinants with multivariate polynomial entries

4 votes

A clean way to compute exp(-1/x^2) near x=0 in C?

4 votes

Largest negative eigenvalue

4 votes

4th-order Runge-Kutta method for coupled harmonic oscillator

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