MUESLI: a free numerical and graphical library

MUESLI library

What is MUESLI?

MUESLI is a free numerical and graphical library, written mainly in Fortran 95 and developped by Édouard Canot.

For a first introduction, see the User Guide.

The available release is numbered 2.15.5 and dated 2019-05-15.

for Linux systems, contrary to the past, only two Fortran 95 compilers are supported:

GNU gfortran, version ≥ 4.8 (version numbers 4.8 to 9 are ok)
INTEL ifort, version ≥ 13 (version numbers 11 and 12 may work, but are no longer supported)

whole unix sources archive

packages for Ubuntu

those for Fedora

for a Windows system, MUESLI is intended to be used under MinGW-w64; refer to this Windows page providing binary files for MinGW (32- or 64-bit).

MUESLI can be also used on Mac OS X. Recent versions of Mac OS X should be ok. Refer to this Darwin page for further information.

MUESLI needs also a C and a C++ compiler. GCC and INTEL actually constitute compiler suites, which provide their own C and C++ compilers.

BLAS / LAPACK must be available on the target machine. The following versions (older ones may or may not work) are recommended: 3.4.2 (Sep 25, 2012), 3.5.0 (Nov 16, 2013), 3.6.1 (Jun 18, 2016), 3.7.1 (Jun 25, 2017), or 3.8.0 (Nov 12, 2017).
They can be get here. Caution: versions 3.2.0 and 3.4.0 lead to either run-time error or wrong results in MUESLI. [For example, Mac OS X Yosemite provides Lapack-3.2.1, which is too old and not adapted to Muesli]
Moreover, the user should also fix the Lapack bug number 114 (a stack corruption may occur, see here; this holds for 3.4.2 and 3.5.0 versions only).
Sometimes, it may be necessary to compile yourself the Blas/Lapack library (some erroneous floating-point exceptions have been reported).

The numerical part (FML) contains more than 385 user-available routines and around 2810 unitary tests. As far as we know, this whole numerical library doesn't contain any memory leak (thanks to valgrind).

However, it is not thread safe.

Documentation:

The Installation Guide and the Reference Manual can also be downloaded.

Recent news:

2019-05-15: Upload of a new archive for the source, dated 2019-05-15, which fix a bug in pgline when using GCC-9.1. Added binary versions for Ubuntu, Fedora and Mac OS X.
2019-05-11: Release of the 2.15.5 version: search of zeros of function now uses the Dekker algorithm (as in Matlab) instead of the classical Newton one. Compilation modes becomes DEBUG/OPTIM instead of DEBUG/RELEASE. ODE and DAE solvers support SPD (Symmetric and Positive Definite) jacobian matrices, and have improved CIC (Consistent Initial Conditions) computation when using sparse and banded jacobian. mfMin and mfMax Muesli fonctions are now consistent when using NaN values: by default NaNs are discarded (as in Matlab), but these special IEEE values can be taken into account via the optional argument 'nanflag'. Many small fixes in FML and FGL.
2018-12-07: Release of the 2.15.2 version: small fixes to get a correct compilation and installation on MacOS X. Added binary for MacOS Mojave.
2018-12-03: Added binary versions for SimplyFortran under Windows (64-bit only)
2018-11-21: Small fix in the FGL sources (PDF driver).
2018-11-13: Added binary versions for recent Fedora distributions (RPM format). Muesli version is now 2.15.1.
2018-10-10: Release of the 2.15.0 version. This is an important upgrade which concerns mostly the graphic library FGL. First a PDF driver has been added, which allow the creation of PDF images without converting the EPS; in the same time the PNG driver has been removed. Second, thanks to libXft, antialiased characters are now used in the figures on the screen, giving very readable strings even when their size is small. Besides, binary packages are now provided for some recent versions of the Ubuntu linux family.
2018-06-25: Release of the 2.12.11 version. 'mfGradient' extended to 2-rank mfArray. New 3rd-order derivative and periodic boundary conditions for 'mfSpline'. New optional argument 'append' for 'msSaveAscii', which can write an mfArray at the end of an existing file. Double integration implemented ('mfDblQuad'). 'mfSimpson' improved: now, the abscissa vector doesn't need to be equally spaced. Lastly, Finite-difference jacobian generation fixed for 'mfLsqNonLin'.
2018-05-18: Release of the 2.12.10 version. New '.and.' and '.but.' operators for integer sequences used in 'mfGet' and 'msSet'. New mfPPDer routine which returns the derivative of a piecewise polynomial function.
2018-04-06: Release of the 2.12.9 version. 'mfInterp' routines improved (both 1D and 2D interpolation). New derived type 'mf_Int_List' for manipulating and displaying integer lists. Updated 3D Delaunay tools (4 new routines).
older news can be found here.

For any question, please contact the author:
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Come back to the author web page.
Last page modification: 2019-05-15