d02ptc provides details about an integration performed by either
d02pec,
d02pfc or
d02pgc.
d02ptc and its associated functions (
d02pec,
d02pfc,
d02pgc,
d02phc,
d02pjc,
d02pqc,
d02prc,
d02psc and
d02puc) solve the initial value problem for a first-order system of ordinary differential equations. The functions, based on Runge–Kutta methods and derived from RKSUITE (see
Brankin et al. (1991)), integrate
where
is the vector of
solution components and
is the independent variable.
After a call to
d02pec,
d02pfc or
d02pgc,
d02ptc can be called to obtain information about the cost of the integration and the size of the next step.
Brankin R W, Gladwell I and Shampine L F (1991) RKSUITE: A suite of Runge–Kutta codes for the initial value problems for ODEs SoftReport 91-S1 Southern Methodist University
Not applicable.
Background information to multithreading can be found in the
Multithreading documentation.
When a secondary integration has taken place, that is when global error assessment has been specified using
in a prior call to
d02pqc, then the approximate number of evaluations of
used in this secondary integration is given by
for
or
and
for
.