NetCDF is an interface for scientific data access and a software library that provides an implementation of the interface. The netCDF library defines a machine-independent format for representing scientific data. Together, the interface, library, and format support the creation, access, and sharing of scientific data.

PALP is a set of programs for calculations with lattice polytopes and applications to toric geometry.

This is a C version of the minpack minimization package. It has been derived from the fortran code using f2c and some limited manual editing. Extern C linkage permits the package routines to be called from C++.

HiGHS provides serial and parallel solvers for large-scale sparse linear programming (LP), mixed-integer programming (MIP), and quadratic programming (QP) models.

KLU is a method for computing the LU factorization of sparse for real and complex matrices.

This is a filter for HDF5 that uses the Blosc compressor; by installing this filter, you can read and write HDF5 files with Blosc-compressed datasets.

qalculate-gtk is the GTK frontend for the Qalculate! multi-purpose calculator.

OR-Tools is a C++ portable software suite, tuned for solving combinatorial optimization problems in vehicle routing, flows, integer, linear and constraint programming.

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.

This package provides a Wolfram language lexer for Pygments.

Gfan is a software package for computing Gröbner fans and tropical varieties.

GNU Dionysus is a convenient system for quickly retrieving the values of mathematical constants used in science and engineering. Values can be searched using a simple command-line tool, choosing from three databases: universal constants, atomic numbers, and constants related to semiconductors.

SLEEF (SIMD Library for Evaluating Elementary Functions) is a library that implements vectorized versions of all C99 real floating point math functions. It can utilize SIMD instructions that are available on modern processors.

The C-library cddlib implements the Double Description Method of Motzkin et al. for generating all vertices (i.e. extreme points) and extreme rays of a general convex polyhedron given by a system of linear inequalities in arbitrary dimension. It can also be used for the converse operation of computing convex hulls.

CXSparse is a collection of sparse matrix algorithms for direct methods on both real and complex matrices.

Arcane is a development environment for parallel numerical calculation code. It supports the architectural aspects of a calculation code, such as data structures for meshing and parallelism, as well as more environment-related aspects such as dataset configuration.

reduceLCS is an implementation of the Reduce-Expand algorithm for LCS. It is a fast program to compute the approximate Longest Commons Subsequence of a set of strings.

COLAMD is library for computing a permutation vector for a matrix with which the LU factorization becomes sparser.

primesieve is a command-line program and C/C++ library for quickly generating prime numbers. It is very cache efficient, it detects your CPU's L1 & L2 cache sizes and allocates its main data structures accordingly. It is also multi-threaded by default, it uses all available CPU cores whenever possible i.e. if sequential ordering is not required. primesieve can generate primes and prime k-tuplets up to 264.

LAPACK is a Fortran 90 library for solving the most commonly occurring problems in numerical linear algebra.

OpenBLAS is a Basic Linear Algebra Subprograms (BLAS) library forked from the GotoBLAS2-1.13 BSD version.

Gnuplot is a portable command-line driven graphing utility. It was originally created to allow scientists and students to visualize mathematical functions and data interactively, but has grown to support many non-interactive uses such as web scripting. It is also used as a plotting engine by third-party applications like Octave.

SLEPc, the Scalable Library for Eigenvalue Problem Computations, is based on PETSc, the Portable, Extensible Toolkit for Scientific Computation. It employs the MPI standard for all message-passing communication. slepc4py provides Python bindings to almost all functions of SLEPc.

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).