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Computational Science

Notable Question

 Notable Question
Question with 2,500 views. This badge can be awarded multiple times.
Awarded 915 times.
How is the SVD of a matrix computed in practice
Awarded Mar 21, 2021 at 14:56
A numerical GMRES example
Awarded Mar 18, 2021 at 14:16
How to efficiently solve a QCQP with "dynamic" constraints in Python?
Awarded Mar 17, 2021 at 22:56
Iteratively solving 3D Poisson equation in MATLAB
Awarded Mar 11, 2021 at 20:15
Computing spherical harmonic coefficients using Scipy
Awarded Mar 10, 2021 at 10:27
9-point stencil finite difference Laplacian with variable diffusion coefficients
Awarded Mar 9, 2021 at 4:06
Finite Difference Method Neumann Boundary Condition with Variable Coefficients
Awarded Mar 2, 2021 at 15:27
Second-order derivative condition for convexity
Awarded Mar 1, 2021 at 10:06
Fourier pseudo-spectral method and numerical dissipation
Awarded Feb 24, 2021 at 17:43
a circular plot from a vector which represents the temperature along the radius surface, which is the same for every radius
Awarded Feb 21, 2021 at 6:42
How can I avoid catastrophic cancellation?
Awarded Feb 20, 2021 at 0:27
Numerical evaluation of a Gaussian Integral in Python?
Awarded Feb 18, 2021 at 3:04
How to use MeshFunction in FEniCS (dolfin)?
Awarded Feb 17, 2021 at 23:35
Inversion of a matrix using c++ library armadillo or eigen [closed]
Awarded Feb 8, 2021 at 14:25
What is the best way to multiply a diagonal matrix (in fortran)
Awarded Feb 4, 2021 at 17:32
How to generate a rotated (by 90 degrees) logistic sigmoid function in Python
Awarded Feb 3, 2021 at 22:07
Do RBF kernel matrices tend to be ill-conditioned?
Awarded Jan 28, 2021 at 23:08
Simple way to store/read data from file in C++
Awarded Jan 27, 2021 at 8:30
Compute all eigenvalues of a very big and very sparse adjacency matrix
Awarded Jan 21, 2021 at 17:50
Use of Java or Scala in HPC?
Awarded Jan 16, 2021 at 10:11
Finding jacobian matrix of cubic finite element
Awarded Jan 11, 2021 at 11:42
Efficiently finding all (x,y,z) points within certain distance of point P
Awarded Jan 8, 2021 at 21:34
full rank update to cholesky decomposition
Awarded Jan 7, 2021 at 18:46
Fortran code for Ewald summation
Awarded Jan 2, 2021 at 23:33
Solving Advection (Convection) - Diffusion - Reaction Partial Differential Equation in Python
Awarded Jan 1, 2021 at 20:15
Testing equality of two floats: Realistic example
Awarded Dec 28, 2020 at 18:35
Is it possible to solve nonlinear PDEs without using Newton-Raphson iteration?
Awarded Dec 28, 2020 at 5:31
Good C++ optimization library for BFGS
Awarded Dec 28, 2020 at 3:19
how to measure the error of a finite difference method
Awarded Dec 22, 2020 at 14:05
How to generate Poisson-distributed random numbers quickly and accurately?
Awarded Dec 19, 2020 at 4:21
Solving coupled differential equations in Python, 2nd order
Awarded Dec 17, 2020 at 1:10
How are scientific computing workflows faring on Apple's M1 hardware
Awarded Dec 13, 2020 at 6:25
Gram-Schmidt method to identify linearly dependent vectors
Awarded Dec 11, 2020 at 9:47
What are the fastest available implementations of BLAS/LAPACK or other linear algebra routines on GPU systems?
Awarded Dec 6, 2020 at 0:11
How can one produce a proper streamline plot?
Awarded Nov 17, 2020 at 15:21
Solving Linear Systems in Julia
Awarded Nov 15, 2020 at 18:27
Extracting a 2D matrix from a multidimensional array in C
Awarded Nov 12, 2020 at 7:05
Understanding MATLAB's `fmincg` optimization function
Awarded Nov 10, 2020 at 23:32
scipy.integrate.odeint: how can odeint access a parameter set that is evolving independently of it?
Awarded Oct 29, 2020 at 19:27
Stability of numerical method for 1D Burger's equation
Awarded Oct 29, 2020 at 1:15
Condition number of A'A and AA' formulations
Awarded Oct 28, 2020 at 14:11
Solving the 1D Particle-in-a-Box using C++
Awarded Oct 28, 2020 at 8:11
Using scipy.odeint to solve coupled equations [closed]
Awarded Oct 27, 2020 at 9:48
Eigenvectors: MATLAB vs LAPACK DGGEV or DGGEVX
Awarded Oct 25, 2020 at 11:55
Small errors accumulate while solving ODE of motion
Awarded Oct 25, 2020 at 9:07
Why can't Householder reflections diagonalize a matrix?
Awarded Oct 22, 2020 at 0:02
Permission denied with diary command [closed]
Awarded Oct 16, 2020 at 10:01
How to integrate numerically over a radial domain
Awarded Oct 6, 2020 at 19:15
computing the truncated SVD, one singular value/vector at a time
Awarded Sep 27, 2020 at 3:33
Recovering pressure from velocity or streamfunction fields
Awarded Sep 1, 2020 at 16:40
Which C++ linear algebra library is probably the fastest on solving huge sparse [square matrix] linear system?
Awarded Aug 28, 2020 at 7:42
What makes a computer fast and powerful to run numerical simulations?
Awarded Aug 27, 2020 at 12:46
How to efficiently determine the intersection of a vertical cutting plane with a mesh
Awarded Aug 26, 2020 at 10:10
Creating 3D Mesh from stl files with gmsh
Awarded Aug 17, 2020 at 13:05
What guidelines should I use when searching for good preconditioning methods for a specific problem?
Awarded Aug 15, 2020 at 21:35
Solving a generalised eigenvalue problem
Awarded Aug 10, 2020 at 14:51
Creating a proper quad-mesh in GMSH for an "I"-shaped geometry
Awarded Jul 27, 2020 at 13:10
discrete definitions of curl $\nabla \times F$?
Awarded Jul 25, 2020 at 22:09
Why `import numpy as np` for scientific computing? [closed]
Awarded Jul 25, 2020 at 10:21
Looking for Runge-Kutta 8th order in C/C++
Awarded Jul 23, 2020 at 1:12
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