Luc Maisonobe wrote :
I don't think everything in Mantissa is useful for Commons-Math. IMHO,
the most interesting parts are :
- the estimation package
Gauss-Newton estimator (based on LU decomposition),
Levenberg-Marquardt estimator (based on QR decomposition)
- the fitting package (curve fitting, using the estimation package)
- the Ordinary Differential Equations package
this is clearly THE best package in Mantissa, with several
state of the art integrators with fixed steps, variable stepsize
(including Dormand-Prince 8 (5,3) and Gragg-Bulirsch-Stoer),
all of them supporting continuous output and multiple switching
functions (can be used for G-stop, but not limited to that), well
tested and used
- the roots package
provides a Brent algorithm when the derivatives are not available
I forgot to talk about the optimization package (direct search methods
using only functions values, without derivatives). This could also be
interesting in addition to the estimation package. It provides one
generic abstract solver and two implementations, Nelder-Mead and
Virginia Torczon's mutidirectional search.
Luc
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