Dedekind 0.0.0
A structuralist C++23 Module Library
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dedekind.analysis Module Reference

Concepts

concept  dedekind::analysis::IsKernel
concept  dedekind::analysis::IsDifferentialForm
 A mapping from a Tangent Space to a Scalar.
concept  dedekind::analysis::IsHamiltonian
 Formal verification of the energy mapping.
concept  dedekind::analysis::IsPoissonAlgebra
 A Ring equipped with a bracket satisfying the Jacobi Identity.

Classes

class  dedekind::analysis::Dual< F >
 Represents f(x) + f'(x)ε. More...
class  dedekind::analysis::TwoForm< F, N >
 An antisymmetric bilinear form ω(u, v) = -ω(v, u). More...
struct  dedekind::analysis::GaussianKernel< T >
 Gaussian radial basis function (RBF) kernel. More...
struct  dedekind::analysis::ReproducingKernel< DomainSet, T >
class  dedekind::analysis::OneForm< F, N >
 The cotangent vector (The 'Gradient' components). More...
struct  dedekind::analysis::HarmonicOscillator< R >
 Concrete Hamiltonian carrier for the 1-D harmonic oscillator. More...

Typedefs

template<std::floating_point R>
using dedekind::analysis::PhasePoint = Vector<R, 2>
 Canonical 1D phase-space state (q, p).

Functions

template<typename F>
constexpr F dedekind::analysis::component (const Dual< F > &d, dedekind::category::At< 1 >)
 Canonical product projections for Dual (the ADL component hook of dedekind::category::π_1 / π_2): 𝔻's storage is val / der, not the pair-like .first / .second the default projection reads, so we provide the overload here. This is what makes Dual satisfy IsProduct uniformly with Complex (P-leg), while value() / derivative() stay as the domain-specific aliases that agree with π_1 / π_2.
template<typename F>
constexpr F dedekind::analysis::component (const Dual< F > &d, dedekind::category::At< 2 >)
template<detail::IsNumericalBridgeScalar R, typename F>
requires std::invocable<F, R>
constexpr R dedekind::analysis::derivative_at (F &&f, R x, R h=static_cast< R >(1e-5))
 Numerical derivative witness via central difference.
template<detail::IsNumericalBridgeScalar R, typename F>
requires std::invocable<F, R>
constexpr R dedekind::analysis::integral_over (F &&f, R a, R b, std::size_t slices=4096)
 Numerical integral witness via trapezoidal rule (Riemann sum).
template<detail::IsNumericalBridgeScalar R, typename F>
requires std::invocable<F, R>
constexpr bool dedekind::analysis::ftc_part_i_hypotheses (F &&f, R a, R b, std::size_t samples=32)
 FTC Part I bridge: d/dx integral_a^x f(t) dt ~= f(x).
template<detail::IsNumericalBridgeScalar R, typename F, typename Antiderivative>
requires std::invocable<F, R> && std::invocable<Antiderivative, R>
constexpr bool dedekind::analysis::ftc_part_ii_hypotheses (F &&f, Antiderivative &&antiderivative, R a, R b, std::size_t samples=32, R tolerance=static_cast< R >(1e-4))
 Numerical bridge for the sampled Part II hypothesis F' ~= f.
template<detail::IsNumericalBridgeScalar R, typename F>
requires std::invocable<F, R>
constexpr bool dedekind::analysis::ftc_part_i_bridge (F &&f, R a, R x, R tolerance=static_cast< R >(1e-4))
 FTC Part I bridge: d/dx integral_a^x f(t) dt ~= f(x).
template<detail::IsNumericalBridgeScalar R, typename F, typename Antiderivative>
requires std::invocable<F, R> && std::invocable<Antiderivative, R>
constexpr bool dedekind::analysis::ftc_part_ii_bridge (F &&f, Antiderivative &&antiderivative, R a, R b, R tolerance=static_cast< R >(1e-4))
 FTC Part II bridge: integral_a^b f(x) dx ~= F(b)-F(a).
template<detail::IsNumericalBridgeScalar R, typename F, typename Antiderivative>
requires std::invocable<F, R> && std::invocable<Antiderivative, R>
constexpr bool dedekind::analysis::ftc_worked_theorem_chain (F &&f, Antiderivative &&antiderivative, R a, R x, R b, R tolerance=static_cast< R >(1e-4))
 Worked theorem chain combining both FTC directions.
template<detail::IsNumericalBridgeScalar R, typename F>
requires std::invocable<F, R>
constexpr std::pair< R, R > dedekind::analysis::suggest_derivative_step_size (F &&f, R x, R tolerance=static_cast< R >(1e-6))
 Diagnostic: suggests optimal derivative step size via convergence testing.
template<detail::IsNumericalBridgeScalar R, typename F>
requires std::invocable<F, R>
constexpr std::pair< std::size_t, R > dedekind::analysis::diagnose_integral_convergence (F &&f, R a, R b, R convergence_threshold=static_cast< R >(1e-5))
 Diagnostic: validates integral convergence via Richardson extrapolation-style sampling.
template<std::floating_point F, std::size_t N>
constexpr auto dedekind::analysis::wedge (const OneForm< F, N > &a, const OneForm< F, N > &b)
 The Wedge Product (∧): α ∧ β
template<IsMatrixScalar F, std::size_t N>
constexpr Covector< F, N > dedekind::analysis::to_covector (const OneForm< F, N > &w)
 Convert a OneForm to its Covector (row-vector) representation.
template<IsMatrixScalar F, std::size_t N>
constexpr OneForm< F, N > dedekind::analysis::from_covector (const Covector< F, N > &cov)
 Convert a Covector to its OneForm representation.
template<std::floating_point R, std::size_t N>
constexpr R dedekind::analysis::poisson_bracket (auto &&f, auto &&g, const Vector< R, N > &state)
 The Poisson Bracket: The fundamental operation of Classical Mechanics.
template<std::floating_point R>
constexpr PhasePoint< R > dedekind::analysis::harmonic_oscillator_closed_form (R q0, R p0, R t, R ω=R{1})
 Closed-form harmonic-oscillator flow at time t.
template<std::floating_point R>
constexpr auto dedekind::analysis::harmonic_oscillator_curve (R q0, R p0, R ω=R{1})
 Continuum-indexed Hamiltonian trajectory as a Curve.
template<std::floating_point R>
constexpr auto dedekind::analysis::harmonic_oscillator_leapfrog_path (R q0, R p0, R dt, R ω=R{1})
 Discrete Hamiltonian trajectory via leapfrog/Verlet (infinite path).
template<std::floating_point R>
constexpr auto dedekind::analysis::harmonic_oscillator_leapfrog_finite_path (R q0, R p0, R dt, std::size_t steps, R ω=R{1})

Variables

constexpr auto dedekind::analysis::𝔻
 The canonical dual-number universe 𝔻 = 𝔸<Dual<QuadraticReal<2>>, Boole, ℶ_1> — the coat-hanger 𝔻 = Dual(ℝ) over the genuine ℝ = ℚ(√2) (mirroring ℝ and ℂ).
constexpr auto dedekind::analysis::embed_ℝ_𝔻
 The Birkhoff S leg \(\mathbb{R}\hookrightarrow\mathbb{D}\) over the coat-hanger: QuadraticReal<2> → Dual<QuadraticReal<2>>, \(r\mapsto r+0\varepsilon\) (primal r, tangent 0).

Files

file  src/main/modules/dedekind/analysis/analysis.cppm
 kernels, forms, exterior calculus, Hamiltonian flow.
file  src/main/modules/dedekind/analysis/dual.cppm
 Dual numbers 𝔻 = a + bε with ε² = 0 — forward-mode AD carrier.
file  src/main/modules/dedekind/analysis/exterior.cppm
 The Wedge Product and Symplectic Geometry.
file  src/main/modules/dedekind/analysis/forms.cppm
 The Exterior Algebra (Differential Forms).
file  src/main/modules/dedekind/analysis/ftc.cppm
 Fundamental Theorem of Calculus bridge hooks.
file  src/main/modules/dedekind/analysis/hamilton.cppm
 The Principle of Least Action (Hamiltonian Dynamics).
file  src/main/modules/dedekind/analysis/kernels.cppm
 Kernel primitives – Gaussian and reproducing kernels.