Heun’s Method

Explicit fixed-step solver of second order. Heun’s method (also called the modified Euler’s method or the explicit trapezoidal rule) is named after Karl L. W. M. Heun and can be seen as an extension of the Euler method into a two-stage second-order Runge–Kutta method. Heun’s method is a predictor-corrector method with forward Euler’s method as predictor and trapezoidal method as corrector.

The Butcher tableau of the Heun’s method is:

0 1 1 1/2 1/2 Applicable solver settings:

• Fixed-step size
• Limit data points to last

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