Fortran 77 code for solving nonlinear equations and nonlinear least squares problems. Five algorithmic paths each include a core subroutine and an easy-to-use driver. The algorithms proceed either from an analytic specification of the Jacobian matrix ...

Optimization codes at Netlib.

Subspace-searching simplex method for the unconstrained optimization of general multivariate functions, generalizing the Nelder-Mead simplex method.

Codes for ordinary differential equations from Netlib.

Solves the weighted orthogonal distance regression problem to find parameter estimates that minimize the sum of the squares of the weighted orthogonal distances between each observed data point and the curve described by a nonlinear equation. Includes...

Fortran 77 and RATFOR code to fit smoothing splines using generalized cross-validation.

Fortran subroutines for calculating smoothing splines for various kinds of data and geometries, with automatic knot selection.

Software tool that takes as input a file of Fortran 77 code and checks it according to various "coding conventions". Floppy can "tidy" the source Fortran, producing a new file with indented DO-loops, block IF's, and so on. Floppy can be used to genera...

A Java version numerically intensive test that has been used for years to measure the floating point performance of computers. By Jack Dongarra, Reed Wade, and Paul McMahan.