A comprehensive spline curve function library for creating and evaluating splines in Excel, VB and VBA. Free download of evaluation copy.

A comprehensive list including freeware, shareware and commercial packages.

A software package for calibration, data analysis, image display, plotting, etcetera on astronomical data.

Astronomical computations and mathematical functions source programs in C. Home page of the Cephes Mathematical Library.

Resources: Acoustics, Laplace and Helmholtz Problems. Book, manuals, Fortran software (Free and to purchase).

Includes the Finite Element/Nystrom Solver, a two dimensional coupled finite element / Nystrom solver for the Helmholtz equation.

A standard fortran 77 package for solving large-scale nonlinearly constrained optimization problems. Free download by FTP.

Ready to use solutions for optimization problems, or at least a way to build such a solution using work done by others. Where possible, public domain software is listed.

Basic presentation of the discrete Fourier series transform. Explanations and formules. Raw source code to calculate numerical Fourier transforms.

Software for nonlinear programming.

Used to identify parameters in explicit model functions, dynamic systems of equations (steady-state), Laplace transforms, ordinary differential equations, differential algebraic equations and one-dimensional partial differential equations. Proceeding from given experimental data. For example, observation times and measurements, the minimum least squares distances of measured data from a fitting criterion are computed, that may depend on the solution of the dynamic system.

Free general PDE solver driven by a user friendly language. Both a 2D and a 3D version are available. MacOS, Windows.

Software for high-performance computers available in source form for problems in numerical linear algebra, specifically dense, sparse direct and iterative systems and sparse iterative eigenvalue problems.

Freeware used to solve optimization problems with several real and binary parameters and non linear objective functions and constraints. Includes illustration of program and links to the author's other webpages.

Free numerical analysis and visualization environment similar to Matlab.

Central location for custom scripts, functions and extensions to GNU Octave.

HSL (formerly the Harwell Subroutine Library) is a collection of ISO Fortran codes for large scale scientific computation, written by members of the Numerical Analysis Group and other experts. Free download by FTP.

This private website is entirely dedicated to sources in numerical analysis in four languages: Basic, C++, Fortran and Pascal in Microsoft Windows environment.

Numerical, statistical, and signal processing subroutine libraries optimised for OS/2 platforms.

Providing the MatLinks ToolChest and Chorus ToolBox, peer-reviewed GNU Octave and Matlab/Simulink toolsuites under active development by scientists and engineers around the world.

Algorithm for the numerical integration of systems of ordinary differential equations arising in chemical problems. C ocde, free to use.

Graph, mesh, and hypergraph partitioning software. Free download, portable on most Unix systems that have an ANSI C compiler (e.g. GNU C).

Visualization software developed at MIT.

Searchable repository of free numerical software.

For the manipulation of matrices in the C++ language, oriented towards science and engineering applications.

Notes and Fortran code on topics including: Finite elements, finite differences, boundary elements, integral equation methods, optimisation,linear systems, numerical integration, ODEs.

VectorSpace C++ Library for advanced numerical computation such as constrained optimization, variational methods, and computational mechanics.

A Java-Applet/Application for solving ODE systems.

The Reactor Simulation Editor (rsedit) is a software package designed to solve finite difference equations in a simplified way. The tool kit includes: a geometry editor, data structure editors, equation editor and an HTML output library.

Software and Algorithms for linear and nonlinear inverse Problems: Computerized tomography, wavelet applications, statical computations, multi parameter fit and more

FORTRAN programs for solving Sturm--Liouville equations.

Software for complex three dimensional surfaces.

The tensor language. Scientific computing language and environment.

Test problems, experimental results from a number of proven solvers, solvers, subroutines providing a common interface and links for Initial Value Problems for ODEs, DAEs and IDEs.

A high-level interpreted language for numerical analysis. Free (GNU GPL).

An implementation of exact real arithmetic in C++ by Keith Briggs.