rk23_test

rk23_test, an Octave code which calls rk23() to implement Runge-Kutta ODE solvers of orders 2 and 3.

Licensing:

The computer code and data files described and made available on this web page are distributed under the MIT license

Related Data and Programs:

rk23, an Octave code which implements Runge-Kutta ODE solvers of orders 2 and 3.

Source Code:

• rk23_test.m calls all the tests.
• rk23_test.sh runs all the tests.
• rk23_test.txt the output file.

• predator_deriv.m evaluates the derivative for the predator-prey problem.
• predator_rk2.m approximates the predator-prey problem using a Runge-Kutta method of order 2.
• predator_rk3.m approximates the predator-prey problem using a Runge-Kutta method of order 3.

• predator_rk2_phase.png a phase plot produced by predator_rk2().
• predator_rk3_phase.png a phase plot produced by predator_rk3().
• predator_rk2_plot.png a solution plot produced by predator_rk2().
• predator_rk3_plot.png a solution plot produced by predator_rk3().