gtsam: EllipticFunction.hpp Source File

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 #if !defined(GEOGRAPHICLIB_ELLIPTICFUNCTION_HPP)
 #define GEOGRAPHICLIB_ELLIPTICFUNCTION_HPP 1
  
 #include <GeographicLib/Constants.hpp>
  
 namespace GeographicLib {
  
   class GEOGRAPHICLIB_EXPORT EllipticFunction {
   private:
     typedef Math::real real;
  
     enum { num_ = 13 }; // Max depth required for sncndn; probably 5 is enough.
     real _k2, _kp2, _alpha2, _alphap2, _eps;
     real _Kc, _Ec, _Dc, _Pic, _Gc, _Hc;
   public:
  
     EllipticFunction(real k2 = 0, real alpha2 = 0)
       { Reset(k2, alpha2); }
  
     EllipticFunction(real k2, real alpha2, real kp2, real alphap2)
       { Reset(k2, alpha2, kp2, alphap2); }
  
     void Reset(real k2 = 0, real alpha2 = 0)
     { Reset(k2, alpha2, 1 - k2, 1 - alpha2); }
  
     void Reset(real k2, real alpha2, real kp2, real alphap2);
  
     Math::real k2() const { return _k2; }
  
     Math::real kp2() const { return _kp2; }
  
     Math::real alpha2() const { return _alpha2; }
  
     Math::real alphap2() const { return _alphap2; }
  
     Math::real K() const { return _Kc; }
  
     Math::real E() const { return _Ec; }
  
     Math::real D() const { return _Dc; }
  
     Math::real KE() const { return _k2 * _Dc; }
  
     Math::real Pi() const { return _Pic; }
  
     Math::real G() const { return _Gc; }
  
     Math::real H() const { return _Hc; }
  
     Math::real F(real phi) const;
  
     Math::real E(real phi) const;
  
     Math::real Ed(real ang) const;
  
     Math::real Einv(real x) const;
  
     Math::real Pi(real phi) const;
  
     Math::real D(real phi) const;
  
     Math::real G(real phi) const;
  
     Math::real H(real phi) const;
  
     Math::real F(real sn, real cn, real dn) const;
  
     Math::real E(real sn, real cn, real dn) const;
  
     Math::real Pi(real sn, real cn, real dn) const;
  
     Math::real D(real sn, real cn, real dn) const;
  
     Math::real G(real sn, real cn, real dn) const;
  
     Math::real H(real sn, real cn, real dn) const;
  
     Math::real deltaF(real sn, real cn, real dn) const;
  
     Math::real deltaE(real sn, real cn, real dn) const;
  
     Math::real deltaEinv(real stau, real ctau) const;
  
     Math::real deltaPi(real sn, real cn, real dn) const;
  
     Math::real deltaD(real sn, real cn, real dn) const;
  
     Math::real deltaG(real sn, real cn, real dn) const;
  
     Math::real deltaH(real sn, real cn, real dn) const;
  
     void sncndn(real x, real& sn, real& cn, real& dn) const;
  
     Math::real Delta(real sn, real cn) const {
       using std::sqrt;
       return sqrt(_k2 < 0 ? 1 - _k2 * sn*sn : _kp2 + _k2 * cn*cn);
     }
  
     static real RF(real x, real y, real z);
  
     static real RF(real x, real y);
  
     static real RC(real x, real y);
  
     static real RG(real x, real y, real z);
  
     static real RG(real x, real y);
  
     static real RJ(real x, real y, real z, real p);
  
     static real RD(real x, real y, real z);
  
   };
  
 } // namespace GeographicLib
  
 #endif  // GEOGRAPHICLIB_ELLIPTICFUNCTION_HPP

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Definition: gnuplot_common_settings.hh:74