pub trait CanonicalStiffnessQuadrature {
type Quadrature;
// Required method
fn canonical_stiffness_quadrature(&self) -> Self::Quadrature;
}
Expand description
A canonical quadrature for integrating the stiffness terms.
The quadrature exactly integrates the expression
$$
\int_K \nabla \phi_i \cdot \nabla \phi_j \, \mathrm{d} x
$$
on a region $K$ for basis functions $\phi_k$.