Statistiques
5 Questions
0 Réponses
RANG
261 570
of 300 392
RÉPUTATION
0
CONTRIBUTIONS
5 Questions
0 Réponses
ACCEPTATION DE VOS RÉPONSES
0.0%
VOTES REÇUS
0
RANG
of 20 933
RÉPUTATION
N/A
CLASSEMENT MOYEN
0.00
CONTRIBUTIONS
0 Fichier
TÉLÉCHARGEMENTS
0
ALL TIME TÉLÉCHARGEMENTS
0
RANG
of 168 335
CONTRIBUTIONS
0 Problèmes
0 Solutions
SCORE
0
NOMBRE DE BADGES
0
CONTRIBUTIONS
0 Publications
CONTRIBUTIONS
0 Public Chaîne
CLASSEMENT MOYEN
CONTRIBUTIONS
0 Point fort
NOMBRE MOYEN DE LIKES
Feeds
Question
How to create 3D Fourier matrix?
I would like to create a Fourier matrix for a 3D fourier transform. I know that for 1D FFT in Matlab it can be created with dftm...
plus de 9 ans il y a | 1 réponse | 0
0
réponseQuestion
Lsqr first iteration without any initial guess
I am trying to solve argmin||Ax-B|| using lsqr with a function handle and without any initial guess. I thought that lsqr would h...
plus de 9 ans il y a | 1 réponse | 0
0
réponseQuestion
lsqr result strongly depends on weights
I need to solve argmin||W*FT^-1(Ax)-W*p|| using lsqr. p is image, x is k-space matrix, A is a matrix and W is a weighting matrix...
plus de 9 ans il y a | 1 réponse | 0
1
réponseQuestion
lsqr converged but returns large residual
I'm using lsqr. It converges, but I get this message: lsqr converged at iteration 10 to a solution with relative residual 0....
presque 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Creating huge fourier matrix
I need to minimize ||FT^-1(Ax-B)|| using lsqr. A is a huge matrix which I had to define using spalloc. Since fft() can't handle ...
presque 10 ans il y a | 1 réponse | 0
