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After solving this system, we know the temperature at instant and we would like to know its time derivative
in order to apply the equation (30). We proceed as presented in section 4.Basicly
and
where
and
are the sets of the basis
functions at time steps and . The equation which links these
variables is the time-stepping scheme:
We multiply the last expression by
and integrate on :
Renaud Merle
2000-08-26