Software

New or maintained software

Backward error analysis for matrix exponential approximation.
FreeFem++ code for Quasi-Newton minimization for the p(x)-Laplacian problem, References CZ17.
expleja.m (a Matlab code for approximation of exponential function of a matrix).
Padua2DM (a Matlab/Octave code for interpolation and cubature at the Padua points),
download code, References CDMSV09
GSGPE, Ground state for systems of coupled Gross–Pitaevskii equations,
download code, References CORT09
leja.f (a Fortran77 code to generate Leja and symmetrized Leja points),
download code
lejapoints.m (a Matlab® code to generate Leja and symmetrized Leja points or to sort a given vector in the Leja order),
download code
The code was tested with Matlab® 6.5.0.180913a, 7.0.4.352 and 7.3.0.298. It also works with GNU Octave 2.9.13 and 2.9.14.
HyperCube (a Fortran77 code for hyperinterpolation in the cube),
download code, References: CDMV08 Updated on Nov 22th, 2006.
XuPad2D (a Matlab interface for hyperinterpolation at Xu points and interpolation at Padua points on rectangles; replaces the former interface Hyper2D), download code, References: CVDMM06, CDMV06, BCDMVX06
Updated on Nov 21th, 2006.
Padua2D (old version, a Fortran 77 code for interpolation at Padua-like points on rectangles, triangles and ellipses),
download code, References: BCDMVX06, CVDM08, CDMV08JCAM

Old software

Bivariate polynomial interpolation and hyperinterpolation at Xu points,
References: CDMV06

Third party software

NFFT

Please download at the following link.

How to use NFFT 3.3.0 in MATLAB and GNU OCTAVE

In Unbuntu 14.04, configure with

./configure --with-matlab=/usr/local/matlab
LDFLAGS=-Wl,-rpath,/usr/local/matlab/bin/glnxa64 --enable-openmp

and then make. In the folder nfft-3.3.0/matlab/nfft/ there is the code to use.
In order to use NFFT 3.3.0 with octave, you need the following patch. After extracting nfft-3.3.0.tar.gz, copy the patch in nfft-3.3.0 and apply the patch with

patch -p1 <
nfft-3.3.0-octave.patch

and configure with

./configure --with-octave=/usr/include/octave-x.x.x/octave
--enable-openmp

. Then make. Alternatively, you may use the following GNU OCTAVE package. Download it, enter GNU OCTAVE and type

pkg install
nfftpkg-0.0.3.tar.gz

. Then pkg load nfftpkg. You can now run simple_test in order to see whether the installation went fine. Each time you run GNU OCTAVE, you need to load the package.

How to use NFFT 3.3.1 in MATLAB and GNU OCTAVE

Follow the above instructions. You will nod need the flag LDFLAGS=-Wl,-rpath,/usr/local/matlab/bin/glnxa64 for Matlab. You will need the following patch for GNU OCTAVE. Alternatively, you may use the following GNU OCTAVE package.