Fortran 77 codes to solve the quadratic equation, solve a nonlinear equation using the Newton-Raphson method, fit a simple linear regression, and solve a system of equations using Gaussian elimination.

A library for parsing Unix style command line arguments, written by John S. Urban. Provides source code and examples.

Fortran 77 and 90 codes.

Demonstrates handling of floating point exceptions under g77/i386/Linux. By Tom Crane.

Codes for multiple precision arithmetic, uniform and normal random number generators, irreducible/primitive trinomials, and parallel sorting. Released under the GNU General Public License.

An old but dependable library of Fortran 77 code which includes approximation, ODE/PDE solution, linear algebra, optimization, quadrature, root finding, special functions and FFTs. You must agree to single-user licence conditions before downloading a ...

A coupled system of climate components for Earth, Mars and Titan developed at the University of Hamburg. Includes Fortran 90 source code, papers, images, and a forum.

Conversion to and from Julian dates, day-of-week and other date calculations, plus historical information. See also datesub.f90 at http://users.bigpond.net.au/amiller/

Fortran 90 code by Jacques Laminie.

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 i...