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Top Questions

14 votes
3 answers
1k views

Why aren't Krylov subspace methods popular in the Machine Learning community compared to Gradient Descent?

4 votes
4 answers
224 views
+100

Minimize distance between curves

5 votes
2 answers
270 views

Recurrence relation for matrices

3 votes
2 answers
622 views

My Complex Matrix SVD is Correct according to rule A = USV' but Wrong according to Matlab or any linear algebra library

2 votes
3 answers
88 views

Why are dual numbers needed only in forward-mode autodiff?

2 votes
3 answers
79 views

Should reaction be taken into account in the CFL condition when solving advection-diffusion-reaction equations numerically?

3 votes
1 answer
131 views

Column-normalized inverse?

3 votes
1 answer
74 views

Notation for an optimization function that receives a vector of pairs

1 vote
1 answer
91 views

What FEM solver should be used for matrix-valued FE spaces?

2 votes
1 answer
114 views

Numerical representation of linear spaces

1 vote
1 answer
66 views

A priori estimates in finite elements for inhomogeneous heat equation

1 vote
1 answer
67 views

Optimization software for real-valued functions of complex arguments

5 votes
0 answers
97 views

Dense least-squares with millions of variables

3 votes
0 answers
95 views

How is the surface Jacobian determinant calculated in FEM?

1 vote
1 answer
90 views

How to perform FFT from plane-wave basis function coefficients to real space?

2 votes
1 answer
40 views

Numerical computation of Lyapunov exponents: how to find convergence or non-convergence efficiently?

4 votes
0 answers
81 views
+200

How does one proceed to solve (big) underdetermined or overdetermined systems of linear equations "nowadays"?

1 vote
0 answers
80 views

Numerical methods for $u_t+c u_x= \frac{-c}{x}u$?

0 votes
0 answers
78 views

Solving differential equations with fast oscillations using odeint

-1 votes
1 answer
60 views

How to initialize Eigen C++ parameters within for-loop?

3 votes
0 answers
75 views

Splitting system of equations into linear and nonlinear part and solving separately

3 votes
1 answer
74 views

How can I check mass conservation when solving the advection equation using an upwind scheme?

7 votes
0 answers
57 views

Choice between using Moore-Penrose inverse and G2 inverse

1 vote
1 answer
56 views

What algorithm does CVXPY actually use to solve semidefinite programs with the constraints of the form $\sum\limits_i E_iXE_i^T \succ B$?

0 votes
1 answer
43 views

How can I define an equipotential surface/volume in FEniCS?

-1 votes
1 answer
33 views

gmsh python api ignores quad mesh option [closed]

0 votes
1 answer
69 views

Solving PDE with a non-linear constraint in MATLAB

1 vote
1 answer
48 views

Applying Stress Boundary Conditions in Commercial Finite Element Analysis Codes

3 votes
0 answers
57 views

How to maximize effectiveness of 2 check bits overseeing 6 data bits?

1 vote
0 answers
57 views

Finding the weak form of a PDE with a tensor argument

5 votes
0 answers
43 views

Lowest eigenvalues of a matrix with divergent entries

0 votes
0 answers
55 views

Can finite-difference WENO schemes be used to solve non-conservative equations?

0 votes
0 answers
55 views

Derivation of the second Piola-Kirchhoff tensor

2 votes
0 answers
53 views

Estimating $n$ column norms of $A$ by using less than $n$ calls to $Ax$?

0 votes
1 answer
53 views

Modeling ferromagnetic materials in a primitive python FEA

-1 votes
0 answers
51 views

Is there a function in sympy or scipy that corresponds to massMatrixForm() in matlab?

-1 votes
0 answers
51 views

Apply CTCS (centered in time, centered in space) approximation to Equation

5 votes
0 answers
39 views

Software for Feasibility Problems

2 votes
0 answers
49 views

Numerical solution to the Tolman-Oppenheimer-Volkoff equations for any equation of state (numerical or analytical)

3 votes
0 answers
46 views

Finite difference on matrices

0 votes
0 answers
42 views

Notation for a time series with discrete time points

2 votes
0 answers
42 views

How to solve the following SDP with cvxpy in Python?

0 votes
0 answers
42 views

A Finite Element Method for a first order PDE?

0 votes
0 answers
39 views

I would like to fit a data to integral type model but cannot figure it how?

4 votes
0 answers
38 views

Dense factorization specialized for RBF-FD method

1 vote
0 answers
37 views

I need MATLAB or Mathematica code to solve this integral over limit 0- λ

user avatar
1 vote
0 answers
35 views

From 3D to 2D with a STL file

1 vote
0 answers
35 views

Finding weighted average of curves


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