- To use QuadratureType, you first need to load the Numerical Differential Equation Analysis Package using Needs["NumericalDifferentialEquationAnalysis`"].
- Valid settings are Open and Closed.
- With the default setting QuadratureType->Closed, the endpoints are included as abscissas.
- With the setting QuadratureType->Open, the endpoints are not included as abscissas. In this case, the initial abscissa is chosen to be a half step above the lower endpoint.