Adams-Moulton multistep methods. These methods support customizable starter
integrators and support discrete events even during the start phase.
All these methods provide the same rich features has the existing ones:
continuous output, step handlers, discrete events, G-stop ...
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When an event occurs exactly at integration start, the first truncated
steps ends up with zero size. This induced problems with forward/backward
sensing based on this step alone. This also induced an infinite loop in
the calling integrators.
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This is more consistent with event handlers management.
The setStepHandler method has therefore been replaced by addStephandler, the
getStepHandler method has been replaced by getStepHandlers which returns a Collection
and a clearStepHandlers method has been added.
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This is more consistent with event handlers management.
The setStepHandler method has therefore been replaced by addStephandler, the
getStepHandler method has been replaced by getStepHandlers which returns a Collection
and a clearStepHandlers method has been added.
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both the state and its time derivatives. The interpolated derivatives are
the exact derivatives of the interpolated state, thus preserving consistency.
The general step handlers hence do not need to call the derivation function
anymore. The fixed step handlers also get the time derivative of the state
as an additional argument along with the state when they are called.
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in order to retrieve exact stop time. This allows to handle properly
integration interruption due to an EventHandler instance asking to
stop the integration when its associated event is triggered. The state
was already set to the current state at interruption time, but it was
difficult to get the corresponding time (it involved setting a step
handler monitoring the last step specially).
JIRA: MATH-213
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classes. This also prepares future work for non-stiff solvers.
SwitchingFunctions is now known as EventHandler
SwitchingFunctionsHandler is now known as CombinedEventsManager
The user manual as also been slightly improved, both to reflect these changes
and to make it easier to grasp the underlying principles in our implementation
of ODE solving
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to a collection of SwitchingFunction instances. This better suits the
intended use of the method and fixes a visibility error since the
previous return type referenced the package private SwitchState class.
JIRA: MATH-210
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From a developer point of view, all the changes are related.
From a user point of view, they are independent changes.
- added several convenience methods for Vector3D and Rotation
- replaced public no argument constructors with IDENTITY or ZERO
static instances for immutable classes Vector3D and Rotation
- fixed inconsistencies in the naming scheme for static fields in
Vector3D and Rotation with respect to the overall library
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Luc Maisonobe
Phil Steitz