Upgrading from:

NumericalMath`GaussianQuadrature`

All the functionality of NumericalMath`GaussianQuadrature` is now available in the newly created Numerical Differential Equation Analysis Package.

To access functionality from the new Numerical Differential Equation Analysis Package, load NumericalDifferentialEquationAnalysis`:

Version 5.2 << NumericalMath`GaussianQuadrature`;
GaussianQuadratureWeights[5, -3, 7]
Numerical Differential Equation Analysis Package

Many functions from NumericalMath`GaussianQuadrature` are now found in the Numerical Differential Equation Analysis Package:

GaussianQuadratureError GaussianQuadratureWeights