//! Element and mesh data structures.
//!
//! This module contains the concrete element implementations (truss / beam / plate)
//! and small supporting types such as [`Node`] and [`Props`].
//!
//! The element types typically implement:
//! - local stiffness / transformation routines
//! - assembly helpers (mapping local DOFs to global DOFs)
//!
//! The goal is to keep each element self-contained so it can be tested/extended in
//! isolation.
pub use Props;
pub use ;
pub use ;
pub use SeparatedStiffnessMatrix;
pub use SeparatedStiffnessMatrixSparse;
pub use ;
pub use ;