image thumbnail

updated 13 days ago

Compressed Differentiation by Oren

The package differentiates symbolic multivariate functions fast and efficiently (jacobian, mixed derivatives, symmetric)

[derivs,uncomp]=compderivs(f,x,order)

test_compderivs.m

image thumbnail

updated 5 months ago

SaivDr Package by Shogo Muramatsu

System object definitions for sparsity-aware image (and volume data) restoration (image processing, nsolt, ista)

Quickstart of SaivDr Package

fcn_ksvdsdiclrn(params)

mytest(testCaseStr)

image thumbnail

updated 10 months ago

packed by Felipe G. Nievinski

Store and manipulate symmetric matrices with half of the dense memory consumption (symmetric, cholesky)

call_subsref (A, info)

chol2(varargin)

cputime_res

image thumbnail

updated 1 year ago

Matlab version of qm1d - 1d Schrödinger equation solver by Vasil

Find eigen values and eigen vectors of Schrödinger equation and plot them. (1d, egenvectors, eigenvalues)

qm1d_fast(NPTS,NSTM,a,b,f_pot_handle)

image thumbnail

updated 1 year ago

MINRES-QLP by Sou-Cheng

Computing min-length (pseudoinverse) solution to symmetric (possibly singular) Ax=b or min||Ax-b||. (singular, symmetric, hermitian linear syst...)

[x,flag,iter,Miter,QLPiter,relres,relAres,...

image thumbnail

updated 3 years ago

lobpcg.m by Andrew Knyazev

LOBPCG solves Hermitian partial generalized eigenproblems using preconditioning, competes with eigs (linear algebra, symmetric, partial)

...

image thumbnail

updated 5 years ago

TRIDIEGS by Vasil

Find eigenvalues an egien vectors of symmetric tridiagonal matrix. (lapack, dstevx, symmetric)

trideigs.m

image thumbnail

updated 5 years ago

Matlab version of qm1d by Vasil

Find and plot eigenvalues and eigenvectors of 1d schrodinger equation. (schrodinger equation, eigenvalues, egenvectors)

qm1d_fast(pot_filename,NPTS,NSTM,L)

image thumbnail

updated 5 years ago

Triangular and diagonal indexing by Bruno Luong

A collection of functions to index diagonal and triangular parts of the matrix (matrix, triangular, upper)

DiagM(n)

DuplicationM.m

EliminationM.m

image thumbnail

updated almost 6 years ago

The matrix exponential by Thomas Schmelzer

Computes exp(A)*b where A is real and symmetric (matrix, functions, vector)

cf_matrixexponential( A,b )

cf_matrixfunction(fct,A,b,n,varargin)

cf_realaxis(fct,n,varargin)

image thumbnail

updated 6 years ago

h_trid by Matt Fig

Uses the Householder method to tridiagonalize a matrix. (linear algebra, tridiagonalize househ..., symmetric)

h_trid(A)

image thumbnail

updated 9 years ago

Arbitrary Rank Update to Cholesky Factorization by Greg von Winckel

Solves the Cholesky factored system with arbitrary update. (linear algebra, cholesky, symmetric)

x=cholrankup(R,U,V,b)

Contact us