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2 votes
1 answer
66 views

Overlap matrix and its inverse matrix

2 votes
1 answer
76 views

"Don't take the derivative of the approximation but approximate the derivative"..or something like this

1 vote
1 answer
49 views

Finite Difference method, ADI Scheme of Douglas and Rachford

0 votes
0 answers
17 views

How can I prepare for informatics Olympiad and acm icpc? [closed]

0 votes
1 answer
48 views

How to use a custom OdeSolver in Scipy's solve_ivp

1 vote
1 answer
27 views

Solving $(I-Q)x={\bf 1}$ for sub-stochastic sparse $Q$ of dimension 5M $\times$ 5M

0 votes
0 answers
31 views

Solving a steady-state PDE

27 votes
10 answers
809 views

Recommendations and experiences on which license to choose for software?

2 votes
0 answers
36 views

Burger's equation (PDE) does not work with downwind difference?

6 votes
2 answers
1k views

In linear programming, is there a way to constrain two variables to not have opposite sign

2 votes
1 answer
32 views

Numerical calculation of Lyapunov exponents using SciPy's built-in solve_ivp

3 votes
1 answer
255 views

Finite difference problem

0 votes
0 answers
35 views

Constructing Mesh In FreeFem++ [closed]

13 votes
2 answers
5k views

Numerical computation of Lyapunov exponent

1 vote
0 answers
26 views

Discretization of 2D advection equation with non-constant speed

1 vote
1 answer
75 views

accuracy problem for a null space calculation on a sparse rectangular matrix

-1 votes
1 answer
42 views

Gmsh problems in Google Colab, visualize mesh

0 votes
0 answers
52 views

ENO-Runge-Kutta discretization

4 votes
1 answer
2k views

2D cross section from 3D surface

1 vote
1 answer
65 views

Numerically computing envelope of Gibbs oscillation

2 votes
1 answer
148 views

Where am I making a mistake in solving the heat equation using the spectral method (Chebyshev's differentiation matrix)?

4 votes
0 answers
68 views

adjoint method for degenerate problems

0 votes
0 answers
25 views

Help with inferring Network topology from Spectral templates

0 votes
0 answers
25 views

Recommendations for some new books about computational contact mechanics in solid mechanics

0 votes
0 answers
43 views

3D Quadrature schemes with points on boundary

1 vote
1 answer
99 views

Step size constraint in Euler backward

1 vote
1 answer
45 views

Finding the Vector $v$ for a Given Householder Matrix Transformation of Non-Collinear Vectors $a$ and $b$

1 vote
1 answer
79 views

Are there any established direct eigensolvers for sparse hermitian matrices?

0 votes
0 answers
35 views

Methods for delaying the "break" in non-linear least squares optimisation when the step size gets too small?

0 votes
0 answers
38 views

Which numerical method can I use to solve this system of hyperbolic PDEs?

2 votes
1 answer
78 views

Solving for $X$ in $\sum_{a,b} b a^T b^T X a = Y$

8 votes
1 answer
214 views

Accurate computation of logbinomial(x,y)

5 votes
1 answer
1k views

Why do we use hermite interpolation for finite element method in beams?

12 votes
2 answers
2k views

Why are systems with clustered eigenvalues easy to solve?

1 vote
1 answer
139 views

Solving PDEs using FEM using cubic Hermite polynomials

0 votes
0 answers
49 views

eigenvalues of inhomogeneous Helmholtz equation violate superposition using FEM

2 votes
1 answer
131 views

Large set of nonlinear equations in Sympy

1 vote
1 answer
199 views

Differential equation for radioactive cooling in fortran

4 votes
3 answers
26k views

scipy odeint - Excess work done on this call

5 votes
2 answers
440 views

Number of function calls and jacobian calls in scipy.root

1 vote
2 answers
96 views

Implementing matrix term version of Gauss-seidel

1 vote
2 answers
556 views

Dekker's root-finding method and fixed interval border (should shrink to root) [closed]

3 votes
1 answer
143 views

Estimating the spectral radius when applying the method of lines

2 votes
1 answer
158 views

Solving non-linear partial differential equation numerically: $u_{xx}+u_{yy}=\mathrm{e}^{u}$

0 votes
1 answer
193 views

Finite volume method for 1D heat equation in 1D

1 vote
1 answer
86 views

Symmetry axis boundary condition

2 votes
1 answer
89 views

references for optimization in the context of parameter identification with finite elements

0 votes
1 answer
67 views

How to plot the power spectrum


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