// header for SphereFit.c
#if defined(_MSC_VER)
#include "winFuncs.h"
#endif

/* IGOR Fit Functions */
double MultiShell(double dp[], double q);
double PolyMultiShell(double dp[], double q);
double SphereForm(double dp[], double q);
double CoreShellForm(double dp[], double q);
double PolyCoreForm(double dp[], double q);
double PolyCoreShellRatio(double dp[], double q);
double VesicleForm(double dp[], double q);
double SchulzSpheres(double dp[], double q);
double PolyRectSpheres(double dp[], double q);
double PolyHardSphereIntensity(double dp[], double q);
double BimodalSchulzSpheres(double dp[], double q);
double GaussPolySphere(double dp[], double q);
double LogNormalPolySphere(double dp[], double q);
double BinaryHS(double dp[], double q);
double BinaryHS_PSF11(double dp[], double q);
double BinaryHS_PSF12(double dp[], double q);
double BinaryHS_PSF22(double dp[], double q);
double OneShell(double dp[], double q);
double TwoShell(double dp[], double q);
double ThreeShell(double dp[], double q);
double FourShell(double dp[], double q);
double PolyOneShell(double dp[], double q);
double PolyTwoShell(double dp[], double q);
double PolyThreeShell(double dp[], double q);
double PolyFourShell(double dp[], double q);
double BCC_ParaCrystal(double dp[], double q);
double FCC_ParaCrystal(double dp[], double q);
double SC_ParaCrystal(double dp[], double q);
double FuzzySpheres(double dp[], double q);
double MicelleSphericalCore(double dp[], double q);

//function prototypes
double F_func(double qr);
double MultiShellGuts(double q,double rcore,double ts,double tw,double rhocore,double rhoshel,int num);
double fnt2(double yy, double zz);
double fnt3(double yy, double pp, double zz);
double SchulzSphere_Fn(double scale, double ravg, double pd, double rho, double rhos, double x);
int ashcroft(double qval, double r2, double nf2, double aa, double phi, double *s11, double *s22, double *s12);
double BCC_Integrand(double w[], double qq, double xx, double yy);
double BCCeval(double Theta, double Phi, double temp1, double temp3);
double SphereForm_Paracrystal(double radius, double delrho, double x);
double FCC_Integrand(double w[], double qq, double xx, double yy);
double FCCeval(double Theta, double Phi, double temp1, double temp3);
double SC_Integrand(double w[], double qq, double xx, double yy);
double SCeval(double Theta, double Phi, double temp3, double temp4, double temp5);