PnetCDF is a high-performance parallel I/O library for accessing Unidata's NetCDF, files in classic formats, specifically the formats of CDF-1, 2, and 5.

GNU Octave is a high-level interpreted language that is specialized for numerical computations. It can be used for both linear and non-linear applications and it provides great support for visualizing results. Work may be performed both at the interactive command-line as well as via script files.

The double-conversion library provides binary-decimal and decimal-binary routines for IEEE doubles. The library consists of efficient conversion routines that have been extracted from the V8 JavaScript engine.

NLopt is a library for nonlinear optimization, providing a common interface for a number of different free optimization routines available online as well as original implementations of various other algorithms.

The CLAPACK library was built using a Fortran to C conversion utility called f2c. The entire Fortran 77 LAPACK library is run through f2c to obtain C code, and then modified to improve readability. CLAPACK's goal is to provide LAPACK for someone who does not have access to a Fortran compiler.

Cbc (Coin-or branch and cut) is a mixed integer linear programming solver written in C++. It can be used as a library or as a standalone executable.

Glucose is a SAT solver based on a scoring scheme introduced in 2009 for the clause learning mechanism of so called “Modern” SAT solvers. It is designed to be parallel.

Gmsh is a 3D finite element grid generator with a built-in CAD engine and post-processor. Its design goal is to provide a fast, light and user-friendly meshing tool with parametric input and advanced visualization capabilities. Gmsh is built around four modules: geometry, mesh, solver and post-processing. The specification of any input to these modules is done either interactively using the graphical user interface or in ASCII text files using Gmsh's own scripting language.

ALUGrid is an adaptive, loadbalancing, unstructured implementation of the DUNE grid interface supporting either simplices or cubes.

Py-BOBYQA is a flexible package for solving bound-constrained general objective minimization, without requiring derivatives of the objective. At its core, it is a Python implementation of the BOBYQA algorithm by Powell,but Py-BOBYQA has extra features improving its performance on some problems. Py-BOBYQA is particularly useful when evaluations of the objective function are expensive and/or noisy.

DUNE, the Distributed and Unified Numerics Environment is a modular toolbox for solving partial differential equations (PDEs) with grid-based methods. It supports the easy implementation of methods like Finite Elements (FE), Finite Volumes (FV), and also Finite Differences (FD).

This package contains the basic DUNE grid classes.

HDF4 is a library and multi-object file format for storing and managing data between machines. HDF4 is an older hierarchical data format, incompatible with HDF5.

The Java HDF5 Interface (JHI5) uses the Java Native Interface to wrap the HDF5 library, which is implemented in C.

Blitz++ is a C++ template class library that provides high-performance multidimensional array containers for scientific computing.

The Interior Point Optimizer (IPOPT) is a software package for large-scale nonlinear optimization. It provides C++, C, and Fortran interfaces.

Qalculate-gtk is the GTK frontend for libqalculate. It is a multi-purpose GUI desktop calculator. It provides basic and advanced functionality. Features include customizable functions, unit calculations, and conversions, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, plotting.

OpenLibm is an effort to have a high quality, portable, standalone C mathematical library (libm). It can be used standalone in applications and programming language implementations. The project was born out of a need to have a good libm for the Julia programming language that worked consistently across compilers and operating systems, and in 32-bit and 64-bit environments.

Fast Downward is a portfolio-based planning system that supports the propositional fragment of PDDL2.2.

SuperLU_DIST is a parallel extension to the serial SuperLU library. It is targeted for distributed memory parallel machines. SuperLU_DIST is implemented in ANSI C, and MPI for communications.

An implementation of the maxflow algorithm described in An Experimental Comparison of Min-Cut/Max-Flow Algorithms for Energy Minimization in Computer Vision.

Yuri Boykov and Vladimir Kolmogorov.

In IEEE Transactions on Pattern Analysis and Machine Intelligence,

September 2004

PDELab is a partial differential equations solver toolbox built on top of DUNE, the Distributed and Unified Numerics Environment.

AMD is a set of routines for ordering a sparse matrix prior to Cholesky factorization (or for LU factorization with diagonal pivoting).

A pure Ruby AsciiMath parsing and conversion library. AsciiMath is an easy-to-write markup language for mathematics.

lp_solve is a mixed integer linear programming solver based on the revised simplex and the branch-and-bound methods.