Algorithms
Codes by Julio F. Fernández for uniform and Gaussian random number generation, matrix diagonalization, and physical simulations.
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.
Applied Numerical Methods for Scientists and Engineers
Fortran and C code from book by Singiresu Rao.
Arithmetic with Error Bounds
Fortran 90 code by Abraham Agay.
ASTEM97 Steam Tables
By Edward D. Throm, contains routines to provide a wide range of interfaces to the thermodynamic and transport properties. [Commercial]
Automatic Differentiation of Fortran Codes (ADIFOR)
Given code as input, it generates code for derivatives including gradients and hessians.
Benchmarks of N. Tajima
Codes to time floating point and integer arithmetic, intrinsic functions, and random access to memory.
BETADER
Derivatives of the Incomplete Beta Function, by Robert J. Boik and James F. Robison-Cox.
BIEPACK
Code for boundary integral equations, by Kendall E. Atkinson.
The Boundary Element Method
Manuals and Fortran source codes for the solution of Laplace, Helmholtz and acoustics problems by the boundary element method.
CFD Recipes
Computational fluid dynamics Fortran 77 code associated with "Computational Gasdynamics", a book by Culbert B. Laney.
Check compiler and run-time environment (CHKSYS)
Chksys.f determines the properties of the run-time environment for Fortran 77 programs. Chkcomp.f is a Fortran 77 code containing deliberate deviations from the standard and deliberate bad statements for testing the compiler's accuracy. Chksysff.f90 is a program to determine the properties of the run-time environment for Fortran 90 programs. Chkcomff.f90 is a Fortran 90 source file containing deliberate deviations from the standard and deliberate bad statements for testing the compiler's accuracy.
Cligen Weather Generator
Fortran 77 code to simulate weather, with associated data files.
Collaborative Computational Projects
Links to chemistry, physics, and engineering codes, many in Fortran.
Combinatorial algorithms
Generation of subsets and permutations, Hamiltonian cycles, determinants and permanents, network flow, and minimum spanning trees.
Compiler Diagnostic Test Sets
Fortran 77/90/95 codes to test run-time diagnostic/debug capability of Windows and Linux Fortran Compilers, by Arnaud Desitter and Herman D. Knoble.
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.
Dan Nagle (Purple Sage Consulting) code
Fortran Portability Project, Fortran 2003 examples, and Fortran modules.
Daniel A. Steck
Fortran 90 codes to integrate Ito stochastic differential equations, generate random numbers, compute the FFT, and time programs.
David Frank
Codes for a number-crunching benchmark, reading Internet URL addresses, and partially convertng C code to Fortran 90.
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