From e4ab12ce914b2471355a99943b58c5b274d8754c Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Fri, 18 Apr 2025 23:02:43 -0300
Subject: Refactor

---
 fourier.hpp | 39 ++-------------------------------------
 1 file changed, 2 insertions(+), 37 deletions(-)

(limited to 'fourier.hpp')

diff --git a/fourier.hpp b/fourier.hpp
index 1708667..6be0931 100644
--- a/fourier.hpp
+++ b/fourier.hpp
@@ -1,23 +1,15 @@
 #pragma once
+#include "types.hpp"
+
 #include <cmath>
 #include <fftw3.h>
-#include <complex>
 #include <vector>
 #include <tuple>
-#include <gsl/gsl_sf_gamma.h>
 
 #ifndef FFTW_THREADS
 #define FFTW_THREADS 1
 #endif
 
-using Real = double;
-using Complex = std::complex<Real>;
-using namespace std::complex_literals;
-
-Real f(Real λ, unsigned p, unsigned s, Real q);
-Real df(Real λ, unsigned p, unsigned s, Real q);
-Real ddf(Real λ, unsigned p, unsigned s, Real q);
-
 class FourierTransform {
 private:
   Real* a;
@@ -37,33 +29,6 @@ public:
   std::vector<Real> convolve(const std::vector<Real>& Γh, const std::vector<Real>& R);
 };
 
-class LogarithmicFourierTransform {
-private:
-  Complex* a;
-  Complex* â;
-  fftw_plan a_to_â;
-  fftw_plan â_to_a;
-  unsigned N;
-  unsigned pad;
-  Real k;
-  Real Δτ;
-  Real τₛ;
-  Real ωₛ;
-  Real sₛ;
-public:
-  LogarithmicFourierTransform(unsigned N, Real k, Real Δτ, unsigned pad = 4);
-  ~LogarithmicFourierTransform();
-  Real τ(unsigned n) const;
-  Real ω(unsigned n) const;
-  Real t(unsigned n) const;
-  Real ν(unsigned n) const;
-  Real s(unsigned n) const;
-  std::vector<Complex> fourier(const std::vector<Real>& c, bool symmetric);
-  std::vector<Real> inverse(const std::vector<Complex>& ĉ);
-};
-
-Complex gamma(Complex z);
-
 std::string fourierFile(std::string prefix, unsigned p, unsigned s, Real λ, Real τ₀, Real y, unsigned log2n, Real τₘₐₓ);
 Real energy(const std::vector<Real>& C, const std::vector<Real>& R, unsigned p, unsigned s, Real λ, Real y, Real Δτ);
 std::tuple<std::vector<Complex>, std::vector<Complex>> RddfCtdfCt(FourierTransform& fft, const std::vector<Real>& C, const std::vector<Real>& R, unsigned p, unsigned s, Real λ);
-- 
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