GAMS : Guide to Available Mathematical Software - Guide to mathematical software in Fortran held at a small number of US government establishments. Some sources are in commercial libraries and are not directly accessible. The code is of a uniformly high quality but usually old; there may be more recent and better algorithms available. Numerical Recipes Home Page - Home of the Numerical Recipes series of books on scientific programming, including the Numerical Recipes On-Line Software Store, free upgrades and bug fixes, and the complete books on-line in PostScript and Acrobat formats. The Numerical Recipes code in Fortran 77 and Fortran 90 is not in the public domain. Fortran Resources (Lahey) - A collection of links provided by a vendor of Fortran compilers. Fortran Library Links - Gary Scott's collection of source code links. Orderpack 1.0 sorting and ranking routines in Fortran 90 - Public domain package by Michel Olagnon of general and specialized sorting and ranking routines in Fortran 90. Specialized routines include partial sorts, partial ranks, unique sorts, unique ranks, partial and unique sorts, as well as partial and unique ranks. Combinatorial algorithms - Generation of subsets and permutations, Hamiltonian cycles, determinants and permanents, network flow, and minimum spanning trees. F2KCLI - Implements the draft F2K standard for accessing the command line and arguments. Site answers questions and lists supported compilers and platforms. Tomasz Plewa's Numerical methods directory - Directory of links to numerical analysis sites, many of which contain software. JPL Planetary and Lunar Ephemerides on CD-ROM by Standish, et. al - Contains three different Jet Propulsion Laboratory Planetary and Lunar Ephemerides (DE200, DE405, and DE406) along with associated reading and interpolating routines, allowing the user to obtain the rectangular coordinates of the sun, moon, and nine major planets by means of a subroutine written in standard Fortran. XML-Fortran - Aims to be a library that allows programmers to access XML files. Public Domain Aeronautical Software (PDAS) - Programs for aeronautical engineering, many from NASA or USAF, complete with public domain source code, instructions and sample cases on CD-ROM. [Commercial] Fortran Tools by Nelson Beebe - Dcl2inc postprocesses ftnchek .dcl files to create separate include files; dtosstod converts Fortran floating-point precision; fpp is a reversible Fortran preprocessor; lprsf3 is a filter to print Fortran and SFTRAN3 files with boldface keywords; and pretty is a Fortran 66 prettyprinter. Utilities in Fortran 90 - Fortran 90 code by Michel Olagnon: pre-processor and pretty-printer, with command-line interface for Unix, fsplit utility for splitting large files into separate ones for each procedure, PostScript converter, interface bloc generator, and format creator for numeric strings. StopWatch - Fortran 90 module, by William Mitchell, for measuring execution time of program segments. It is designed to be a portable, easy-to-use means of measuring execution time. FXDR - Library by David W. Pierce that allows calls to the XDR (eXternal Data Representation) routines from Fortran. F (Fortran 95 subset) Program Examples - Factorial function, iterative computation of the square root, nonadvancing I/O, dynamic arrays, Towers of Hanoi, and other topics. OSCall - OS Command line interface utility for Compaq/Intel Visual Fortran with immediate return or wait specified in milliseconds (routine automatically quotes the command string). ShareBufferWin32 - Easy Inter-Process Shared Memory Communication Utilities for Win32 using a simple Fortran 77-style interface. Written for Compaq Visual Fortran by Gary Scott. DownGradePrecision - Code by Kevin Rhoads to allow precision to be deliberately thrown away in an IEEE floating point compliant computing environment in order to more closely model computations in less precise floating point systems. Examples - Fortran 90 codes from introductory course by John Mahaffy. Algorithms and Data Structures in F and Fortran - Codes from book by Robin Vowels for sorting, linked lists and trees, complex arithmetic, text processing, solving linear equations, graphics, searching, numerical methods, and whole array operations. BIEPACK - Code for boundary integral equations, by Kendall E. Atkinson. Ernesto Martin's codes - Random generator networks and other algorithms. Finite Elements - Fortran 90 code by Jacques Laminie. Jeff Cameron's Fortran code - Code for the VMS operating system and for a fractal figure called Sierpinski's Gasket. Fortran 77 Codes - Programs by John A. Strain to count zeros of the zeta function, compute the Fast Gauss Transform, and use spectral methods to solve nonlinear parabolic systems. High Performance Finite Elements - Fortran 77 and 90 codes. G77_i386_fpe_demo - Demonstrates handling of floating point exceptions under g77/i386/Linux. By Tom Crane. Hello, World - Example of simple program in Fortran. ISO Varying String - Implemented in the F subset by Rich Townsend. Fortran Resources - Garnatz and Grovender - Keyed file shareware in Fortran 90 and 77, Fortran 90 interface to the X Window system. Texas KZK Time Domain Code - Fortran 77 time-domain computer code to model axisymmetric sound beams in fluids. The code is based on an augmented KZK equation that accounts for nonlinearity, diffraction, thermoviscous absorption, and absorption and dispersion due to an arbitrary number of relaxation phenomena. KindFinder - Fortran 90 program by Werner W. Schultz that checks for the available KIND parameters available for a given Fortran 90 or 95 compiler. It prints into a file a new Fortran program that can be compiled to write into a unit the various parameters that describe each integer/real representation. OpenMP Tutorial - Has examples of Fortran codes using the Message-Passing Interface (MPI). Collaborative Computational Projects - Links to chemistry, physics, and engineering codes, many in Fortran. Wild-card String Matching - Fortran 77 code by Clive Page to do wild-card matching to a pattern, which may contain "?" to match any single character, and "*" to match zero or more consecutive characters of any type. Lahey's Fortran Code Repository - Fortran codes for various tasks. Input Routines - Fortran 90 module by Andy Stone that parses input lines into 'words', and routines that read a 'word' and translate it into a specified form, usually an integer or double-precision number. In conjunction with a simple CASE structure this provides a powerful and flexible method for organising data input. The package includes documentation, and an example program and data file as illustrations of the ways in which the module can be used to organise data. [gzipped tar file]. PDEs and linear equations - Fortran and C codes by Dong Liang. Daniel A. Steck - Fortran 90 codes to integrate Ito stochastic differential equations, generate random numbers, compute the FFT, and time programs. Problem Generators - Generators for linear ordering and clustering problems, by John E. Mitchell. Ncregrid - Tool by Patrick Jöckel for data transfer of gridded 2- and 3-dimensional (spatial) geophysical/geochemical scalar fields between grids of different resolutions. The algorithm handles data on rectangular latitude/longitude grids (not necessarily evenly spaced) and vertical pressure hybrid grids of arbitrary resolution. The input/output data format is netCDF. Fortran 77 Codes - Programs by Niklaus Zimmermann for climate data analysis, moving window regression, soil profile analysis, and testing predictive (simulated) maps. Fortran code - Fortran 77 codes by Daniel Powers for optimization and statistics. Selected Publications and Unpublished Software of Patrick Keast - Code for partial differential equations, quadrature, and the solution of linear systems, with associated papers. XML - Module by Mart Rentmeester that reads and interprets XML in standard Fortran 95. Also at the site is code for varying length strings, the complementary error function, an interface to the GD Graphics Library, and nucleon-nucleon potential models. Gridpak - Package for curvilinear orthogonal grid generation, which creates an orthogonal grid when provided with boundary information. LIBXML2F90 - A Fortran 90 library by Alexander Poddey to access (read and write) XML (and similar) structured files via a linked list. This is conceptually different from the SAX approach. The data can be held and 'browsed' in memory. Neural Network Source Code in Fortran 90 - Free code to help you develop neural networks. Ani2D - Fortran 77 package to generate unstructured triangular meshes adapted to a solution function defined at mesh nodes. Utility Code - Fortran 95 code by Paul van Delst for type kinds, comparing floating numbers, error handlers, file processing, endian conversion, list processing, string processing, dates, and fundamental constants. Numerical Methods - Code by John H. Matthews to accompany the book Numerical Methods for Mathematics, Science, and Engineering, Second Edition. XFOIL - Interactive program in Fortran 77 and C for the design and analysis of subsonic isolated airfoils, released under the GNU General Public License. Free Software (of Craig C. Douglas) - Fortran and C codes for fast matrix multiplication and multigrid solution of PDEs. Fortran Programs for Scientists and Engineers - Code from the second edition of the book Alan R. Miller. Fortran 90 codes of John Burkardt - Translations of Fortran 77 packages Lapack, Linpack, Eispack, Quadpack, and others. Code for graphics, finite elements, random number generation, and other topics. NAS Parallel Benchmarks - Set of eight programs designed to help evaluate the performance of parallel supercomputers. The benchmarks, which are derived from computational fluid dynamics (CFD) applications, consist of five kernels and three pseudo-applications. RIM: Computing the Acoutic Field Surrounding a Vibrating Plate - Shareware by Stephen Kirkup. Various Fortran 90 modules - Code for sets, graphs, multi-precision integers, and polynomials. Ooura's Mathematical Software Packages - Quadrature, FFT (1D & 2D), Bessel functions, and GAMERF (gamma and error functions, including quadruple precision). Moisture Content Adjustment Program - Code to predict a property (P2) of dimension lumber at a target moisture content (MC2) given the value of the property (P1) at an initial moisture content (MC1). The Advanced Regional Prediction System (ARPS) - Regional to stormscale atmospheric modeling and prediction system, written in Fortran 90 and released in the public domain. Includes detailed documentation. Peter Benner's Software - Subroutines for control theory, calculating eigenvalues of Hamiltonian matrices, packing and unpacking symmetric or triangular matrices, and examples of discrete- and continuous-time algebraic Riccati equations. A Generic Linked List Implementation in Fortran 95 - Paper by Jason R. Blevins with accompanying source code. Develops a standard conforming list which is capable of storing data of an any type. Generic List - A generic uni-directional linked list with sample list operations, written in Fortran 90 by Roger Young and Peter McGavin. MathFinance - Financial Functions Library - Fortran 90 code for the Cox-Ross-Rubinstein binomial model, the analytic Black-Scholes formula, and Monte Carlo Simulation. Computer Methods for Mathematical Computations - Code from the book, translated to ELF, a Fortran 90 subset. Algorithms for calculations in science and engineering, including linear equations, spline interpolation, integration, differential equations, zero finding, minimization and singular value decomposition. Numerical and Statistical Codes - By Jean-Pierre Moreau.