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subspace.m
Angle between subspaces.

9年弱 前 | ダウンロード 4 件 |

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majorization check
checks if X is (weakly) majorized by Y, where X and Y must be numeric arrays.

9年弱 前 | ダウンロード 1 件 |

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pcg.m with 'null' and 'flex' options
Preconditioned Conjugate Gradients handles homogeneous equations and nonsymmetric preconditioning

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Best polynomial approximation in uniform norm
For a given function on an interval, the code calculates the min-max approximation by a polynomial.

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ODE Tutorial Demo
Advanced examples of using the MATLAB Symbolic Math Toolbox for Ordinary Differential Equations

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Newton's method done right
Newton's method for solving systems of nonlinear equations, including nonsquare and inconsistent

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Laplacian in 1D, 2D, or 3D
Sparse (1-3)D Laplacian on a rectangular grid with exact eigenpairs.

9年弱 前 | ダウンロード 4 件 |

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eigs with sparse matrices
try my http://www.mathworks.com/matlabcentral/fileexchange/48-lobpcg-m instead

12年以上 前 | 0

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Memory requirements of lobpcg: Matlab and hypre implementation differences
Have you actually tried the development version of SLEPc? The one that one gets by svn checkout http://www.grycap.upv.es/sle...

12年以上 前 | 0

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Memory requirements of lobpcg: Matlab and hypre implementation differences
The development version of SLEPc incorporates BLOPEX now, see http://code.google.com/p/blopex/wiki/PETScInstallDevel so that yo...

12年以上 前 | 0

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Memory requirements of lobpcg: Matlab and hypre implementation differences
Please try adding the following options to the ij driver: "-hmis -agg_nl 1 -interptype 6 -Pmx 4" These are proposed by a member ...

12年以上 前 | 0

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Memory requirements of lobpcg: Matlab and hypre implementation differences
The lobpcg code in hypre is very similar to the MATLAB code, and uses about the same memory. The BoomerAMG preconditioner requir...

13年弱 前 | 0

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lobpcg returning incorrect results for large sparse symmetric matrices
Very slow convergence is an expected normal behavior of lobpcg for such a problem, without preconditioning. Unfortunately, I am ...

13年弱 前 | 1

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matlab2hypre and hypre2matlab
Read and write files with sparse matrices and vectors in hypre format

14年弱 前 | ダウンロード 1 件 |