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Computational Science

Excavator

 Excavator
Edit first post that was inactive for 6 months.
Awarded 180 times.
Guidelines for choosing manufactured solutions for numerical PDE schemes
Awarded Oct 1 at 4:25
Nearest positive semidefinite matrix to a symmetric matrix in the spectral norm
Awarded Sep 14 at 4:33
Is the exponential function, e^x, very expensive to compute in Matlab and harmful to my computer?
Awarded Aug 8 at 4:01
Is Fortuna or Mersenne Twister preferable as an algorithmic RNG?
Awarded Aug 6 at 4:41
Differential equation for radioactive cooling in fortran
Awarded Nov 30, 2023 at 4:52
Windows Fortran compiler for legacy Finite Element (1980) code?
Awarded Sep 27, 2023 at 5:56
Pressure boundary condition in lid driven cavity using finite element method
Awarded Aug 6, 2023 at 4:12
Efficient root finding algorithm for monotonic function
Awarded Aug 4, 2023 at 4:11
Split-step Fourier method applied on Schrodinger equation
Awarded Jul 16, 2023 at 4:50
cholesky factorization of block matrices
Awarded Jun 19, 2023 at 4:46
Choice of iterative solver for a sparse asymmetric matrix with symmetric structure
Awarded Jan 11, 2023 at 4:09
Unstructured quad mesh-generation?
Awarded Dec 23, 2022 at 5:27
Is there a high quality nonlinear programming solver for Python?
Awarded Aug 17, 2022 at 4:57
Which Runge-Kutta method is more accurate: Dormand-Prince or Cash-Karp?
Awarded Jul 19, 2022 at 10:33
What are the main differences between PETSc and Trilinos?
Awarded Jul 12, 2022 at 5:51
4th order tensor rotation - sources to refer
Awarded Jul 6, 2022 at 4:10
Profiling optimized C code using gprof
Awarded Jun 4, 2022 at 4:16
Extracting diagonal of an approximately diagonal matrix when we don't know its entries
Awarded Apr 28, 2022 at 4:55
Single Precision a x plus y (SAXPY) terminology
Awarded Apr 1, 2022 at 4:07
Rational functions in Python
Awarded Feb 26, 2022 at 4:25
How are finite volume method boundary conditions implemented without using ghost-cells?
Awarded Jan 12, 2022 at 4:56
An efficient way to numerically compute Stirling numbers of the second kind?
Awarded Oct 24, 2021 at 4:17
Convert seconds [s] to milliseconds [ms] in Paraview "Plot Selection over Time"
Awarded Sep 24, 2021 at 5:16
How does one determine the point group of a molecule?
Awarded Sep 10, 2021 at 4:15
What is the fastest way to calculate the largest eigenvalue of a general matrix?
Awarded Aug 13, 2021 at 4:16
Fast iterative approximate order-oblivious Orthogonalization algorithm?
Awarded Jul 1, 2021 at 4:16
BFGS vs. Conjugate Gradient Method
Awarded Jun 6, 2021 at 12:11
4th order tensor rotation - sources to refer
Awarded Jun 4, 2021 at 4:11
FFT on non-orthogonal lattice ( for computing convolutions and solving PDEs )
Awarded Apr 23, 2021 at 4:13
Why can ill-conditioned linear systems be solved precisely?
Awarded Apr 15, 2021 at 6:53
Pressure boundary conditions in Stokes Equation in 2D
Awarded Apr 7, 2021 at 5:15
Weak formulation for advection diffusion reaction
Awarded Apr 7, 2021 at 5:15
Runtime of Gaussian elimination/row reduction on a rectangular $m \times n$ matrix
Awarded Mar 30, 2021 at 4:05
How does gmres method iteration behave for this non-diagonalizable matrix?
Awarded Mar 12, 2021 at 4:26
Open source auto-differentiation for MATLAB?
Awarded Oct 28, 2020 at 4:36
What are some applications which require interval arithmetic?
Awarded Oct 17, 2020 at 4:16
How to incorporate the boundary conditions with the Galerkin method?
Awarded Sep 29, 2020 at 4:11
Compute point-spread-function between original and blurred image
Awarded Sep 28, 2020 at 9:30
How well do explicit Runge-Kutta "tableau" methods compare to the state of the art ODE solvers and when do they fail?
Awarded Jul 20, 2020 at 4:16
ODE Event detection for calculating multiple roots of continuous sinusoidal equation
Awarded Jul 19, 2020 at 4:10
Is there a minimum angle requirement for cells in the finite volume method?
Awarded Jul 15, 2020 at 4:45
Python vs FORTRAN
Awarded Jul 3, 2020 at 6:26
Flux boundary condition in solute transport
Awarded Jul 1, 2020 at 4:04
Runge-Kutta Simulation For Projectile Motion With Drag
Awarded Jun 14, 2020 at 5:56
Node re-numbering in 1D mesh GMSH
Awarded May 2, 2020 at 4:05
Large-scale nonlinear optimization problem
Awarded Apr 14, 2020 at 4:10
Is it possible to access a GPU remotely (i.e., from another machine)?
Awarded Apr 9, 2020 at 4:55
How can I plot piece-wise defined function in some easily-accessed open-source tool?
Awarded Apr 2, 2020 at 6:15
Intel Fortran Compiler: tips on optimization at compilation
Awarded Mar 7, 2020 at 4:15
Does the global stiffness matrix size depend on the number of joints or the number of elements?
Awarded Feb 20, 2020 at 4:15
Algorithms for linear system of ODEs
Awarded Nov 29, 2019 at 4:05
Sparse matrices origins
Awarded Nov 1, 2019 at 4:40
How can I determine the period of my pseudo-random number generator?
Awarded May 11, 2019 at 4:10
How to Run MPI-3.0 in shared memory mode like OpenMP
Awarded Apr 6, 2019 at 4:05
Solving the 1D Particle-in-a-Box using C++
Awarded Apr 4, 2019 at 4:05
Why is Newton's method not converging?
Awarded Mar 30, 2019 at 4:45
Linear programming feasibility problem with strict positivity constraints
Awarded Mar 10, 2019 at 4:15
What does "symplectic" mean in reference to numerical integrators, and does SciPy's odeint use them?
Awarded Feb 6, 2019 at 4:10
When should log1p and expm1 be used?
Awarded Feb 5, 2019 at 5:00
Grid mapping from an unstructured triangular mesh to a regular rectangular mesh
Awarded Jan 11, 2019 at 4:20
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