//! Finite-difference operators.
//!
//! Port of `ql/methods/finitedifferences/operators/`. This ticket lands the
//! indexing primitives every operator is built on -
//! [`FdmLinearOpIterator`] and [`FdmLinearOpLayout`] - plus the
//! [`FdmLinearOp`] contract the operators themselves implement.
pub use FdmBlackScholesOp;
pub use FdmLinearOp;
pub use FdmLinearOpComposite;
pub use FdmLinearOpIterator;
pub use FdmLinearOpLayout;
pub use first_derivative_op;
pub use second_derivative_op;
pub use TripleBandLinearOp;