Release History

Version Date Description
1.8 2020-12-05 This is a maintenance release.
1.7 2020-06-23 This is a maintenance release. It fixes an infinite loop in event handling.
1.6 2019-11-01 This is a maintenance release.
1.5 2019-05-06 This is a maintenance release. The main changes since last version are the introduction reset events in ODE.
1.4 2018-11-17 This is a maintenance release. The main changes since last version are the introduction of support for complex ordinary differential equations (both primary and secondary equations).
1.3 2018-05-08 This is a maintenance release. The main changes since last version is that secondary equations can now updates the derivatives of the primary equation.
1.2 2017-10-25 This is a maintenance release.
1.1 2017-03-16 This is a maintenance release.
1.0 2016-06-23 This is the first release of the library

Release 1.8 – 2020-12-05

Type Changes By
No changes directly in this module. However, lower level Hipparchus modules did change, hence a new release was needed. luc

Release 1.7 – 2020-06-23

Type Changes By
Fix infinite loop in event handling when a RESET_STATE or RESET_DERIVATIVES event causes two other event detectors to trigger simultaneously and discontinuously at the same time. Fixes issues/94. Thanks to Mikael. evan

Release 1.6 – 2019-11-01

Type Changes By
No changes directly in this module. However, lower level Hipparchus modules did change, hence a new release was needed. luc

Release 1.5 – 2019-05-06

Type Changes By
Fixed missing safety check in multi-step integrators. Github: fixes #62. Fixes issues/62. luc
Avoid too many multi-step integrator restarts after event resetting derivatives. Github: fixes #54. Fixes issues/54. luc
Add Action.RESET_EVENTS to ask the integrator to recheck all event detectors without recomputing the step. Use when the g function of one event detector depends on events occurring in another event detector. evan

Release 1.4 – 2018-11-17

Type Changes By
Added support for complex ordinary differential equations (both primary and secondary equations). Github: fixes #39. Fixes issues/39. luc

Release 1.3 – 2018-05-08

Type Changes By
Fix Field ODE interpolation with restricted step. evan
Allow secondary equations to update derivatives of primary equation in ODE. GitHub: fixes #31. Fixes issues/31. luc

Release 1.2 – 2017-10-25

Type Changes By
No changes directly in this module. However, lower level Hipparchus modules did change, hence a new release was needed. luc

Release 1.1 – 2017-03-16

Type Changes By
Fixed Field ODE integrators handling of secondary equations. GitHub: fixes #7. Fixes issues/7. luc

Release 1.0 – 2016-06-23

Type Changes By
Fix out of order event detection in rare cases. evan
Revamped Ordinary Differential Equations API to match the new API introduced with field-based ODE. luc
Fixed wrong handling of state resets in Adams-Bashforth and Adams-Moulton integrators. luc
Fixed infinite loop when some step reduction was silently filtered to min step in Gragg-Bulirsch-Stoer integrator. luc
Added early detection of NaNs appearing during integration. luc
Enhance reliability of event detection with multiple event detectors. evan
Revamped Ordinary Differential Equations API to match the new API introduced with field-based ODE. luc
Modularized the library. tn

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Version: 1.8. Last Published: 2020-11-21.

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