Integrators Module¶

Module: brahe.integrators

The integrators module provides numerical integration methods for solving ordinary differential equations (ODEs), with specialized support for orbital mechanics and variational equation propagation.

Module Contents¶

• Configuration - Integrator configuration and adaptive step control
• RK4 Integrator - Classical 4th-order Runge-Kutta method
• RKF45 Integrator - Runge-Kutta-Fehlberg 4(5) adaptive method
• DP54 Integrator - Dormand-Prince 5(4) adaptive method
• RKN1210 Integrator - Runge-Kutta-Nyström 12(10) high-precision method

Common Interface¶

All integrators implement one of these trait interfaces:

• FixedStepIntegrator: Fixed time-step integration
• AdaptiveStepIntegrator: Adaptive time-step integration with error control

Borth of which provide common methods:

• step(): Advance the state by one time step
• step_with_varmat(): Advance state and state transition matrix together

See Also¶

• Numerical Integration User Guide - Conceptual introduction and examples
• Choosing Integrators - Guide to selecting the right integrator
• Configuration Guide - Tuning integrator parameters