.. index:: single: ode_solver(System) .. _ode_solver/1:

.. rst-class:: right

category

ode_solver(System)

• System - Object implementing ode_system_protocol. Common validation and option handling for non-stiff initial-value ODE solvers.

  | Availability: | logtalk_load(numerical_analysis(loader))

  | Author: Paulo Moura | Version: 1:0:0 | Date: 2026-09-04

  | Compilation flags: | static

  | Implements: | public :ref:`ode_solver_protocol <ode_solver_protocol/0>` | Extends: | public :ref:`options <options/0>` | Uses: | :ref:`list <list/0>`

  | Remarks: | (none)

  | Inherited public predicates: | Â :ref:`options_protocol/0::check_option/1` Â :ref:`options_protocol/0::check_options/1` Â :ref:`options_protocol/0::default_option/1` Â :ref:`options_protocol/0::default_options/1` Â :ref:`options_protocol/0::option/2` Â :ref:`options_protocol/0::option/3` Â :ref:`ode_solver_protocol/0::solve/4` Â :ref:`ode_solver_protocol/0::solve/5` Â :ref:`ode_solver_protocol/0::solve/6` Â :ref:`options_protocol/0::valid_option/1` Â :ref:`options_protocol/0::valid_options/1` Â

  .. contents:: :local: :backlinks: top

Public predicates

(no local declarations; see entity ancestors if any)

Protected predicates

.. index:: check_initial_value/3 .. _ode_solver/1::check_initial_value/3:

check_initial_value/3 ^^^^^^^^^^^^^^^^^^^^^^^^^

Checks initial and final times and a non-empty numeric initial state.

| Compilation flags: | static

| Template: | check_initial_value(InitialTime,InitialState,FinalTime) | Mode and number of proofs: | check_initial_value(+number,+list(number),+number) - one_or_error

| Exceptions: | An argument is a variable: | instantiation_error | A time is not a number: | type_error(number,Time) | InitialState is not a non-empty numeric list: | domain_error(ode_state,InitialState)

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.. index:: evaluate_derivative/3 .. _ode_solver/1::evaluate_derivative/3:

evaluate_derivative/3 ^^^^^^^^^^^^^^^^^^^^^^^^^

Evaluates and validates a system derivative.

| Compilation flags: | static

| Template: | evaluate_derivative(Time,State,Derivative) | Mode and number of proofs: | evaluate_derivative(+number,+list(number),-list(number)) - one_or_error

| Exceptions: | The system returns a non-numeric derivative or one with the wrong dimension: | domain_error(ode_derivative,Derivative)

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Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)