The linear-system tag has no wiki summary.
1
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1answer
44 views
Vortex Panel Method implementation
I'm trying to understand and implement panel methods for a two-dimensional airfoil.
I haven't found yet a very detailed explanation on how to implement it, and there are some things I don't' still ...
2
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1answer
129 views
SPD matrices with right hand sides
I'm looking for sparse SPD matrices with right hand side? There is UF collection of sparse matrices , however, I'm not sure how do I search of the matrices of these kind efficiently ( I'm doing a ...
6
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4answers
154 views
Best choice of solver for a large sparse symmetric (but not positive definite) system
I am presently working on solving very large symmetric (but not positive definite) systems, generated by some certain algorithms. These matrices have a nice block sparsity which can be used for ...
4
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3answers
99 views
PRIMA gives an unstable result?
I am working with Modified Nodal Admittance representation of circuits. I am doing Model Order Reduction using PRIMA on MATLAB. I am considering these circuits as Descriptor State-Space systems.
I ...
9
votes
1answer
183 views
Solving huge dense linear system?
Is there any hope in solving the following linear system efficiently with an iterative method?
$A \in \mathbb{R}^{n \times n}, x \in \mathbb{R}^n, b \in \mathbb{R}^n \text{, with } n > 10^6$
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5
votes
2answers
157 views
Largest invertible dense matrix with standard solvers such as Lapack
I have a matrix which is complex symmetric. It is around 50,000 elements per side. It is a Method of Moments matrix. Is it feasible to use a standard direct solver such as Lapack to do a matrix ...
