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I have updated my numerical analysis software, and the sources (in Modula-2) and test programs can be fetched from

www.pmoylan.org/pages/m2/NumAnal.html

or from Hobbes directory /pub/os2/dev/modula (currently in incoming).

Some matrix factorisation code still needs to be added (I need to get a release from the people I did the work for), but the handling of polynomials and rational functions has been improved.

The main library modules are:

Cx Complex number arithmetic
Fourier Fast Fourier transform.
Integration Routines to solve ordinary differential equations.
Vec Vector operations.
Mat Matrix operations, including eigenvalues, inverse,
etc.
Poly Manipulation of polynomials, including root-finding.
Rational Manipulation of rational functions (ratios of
polynomials)
MiscM2 Miscellaneous procedures, collected in one module to
ease the porting of the other modules to various
environments.

-- Peter Moylan peter@pmoylan.org www.pmoylan.org