This software is designed for the numerical solution of DAEs.
Its main feature is to solve high index problems that can't be solved
with usual RungeKutta and BDF solvers. Similarly to the general DAEs integrators
developed by Campbell or Kunkel/Mehrman, it is based on index reduction
techniques. However, some computer algebra is carried out for reducing
formally the DAE to an index one problem, so that the index is computed
and the hidden constraints are explicitely worked out. This symbolic preprocessing
reduces significantly the amount of work for the computation of consistent
initial conditions and the numerical solution. For ODE's and semiexplicit
index one DAE's, the code coincides with RADAU5.

The Maple package has been written by Josselin Visconti
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