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subspace.m
Angle between subspaces.

etwa 9 Jahre vor | 2 Downloads |

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

etwa 9 Jahre vor | 1 Download |

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

etwa 9 Jahre vor | 1 Download |

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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.

etwa 9 Jahre vor | 3 Downloads |

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

etwa 9 Jahre vor | 3 Downloads |

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

etwa 9 Jahre vor | 5 Downloads |

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

etwa 9 Jahre vor | 7 Downloads |

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

fast 13 Jahre vor | 0

Beantwortet
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...

fast 13 Jahre vor | 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...

fast 13 Jahre vor | 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 ...

fast 13 Jahre vor | 0

Beantwortet
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...

fast 13 Jahre vor | 0

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Beantwortet
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 ...

fast 13 Jahre vor | 1

| akzeptiert

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

etwa 14 Jahre vor | 1 Download |