tough_ode

tough_ode, an Octave code which sets up and solves a system of four ordinary differential equations (ODE) which is extremely difficult to solve accurately.

Licensing:

The information on this web page is distributed under the MIT license.

Languages:

tough_ode is available in a MATLAB version and an Octave version and a Python version.

Related Data and codes:

tough_ode_test

octave_ode, an Octave code which sets up various ordinary differential equations (ODE).

Reference:

• Ernst Hairer, Syvert Norsett, Gerhard Wanner,
  Solving Ordinary Differential Equations, I: Nonstiff Problems,
  Springer, 1987.

Source Code:

• tough_deriv.m, returns the right hand side of the ODE.
• tough_exact.m, returns the exact solution of the ODE.
• tough_parameters.m, returns parameters for the ODE.