#ifndef __INTERPOLATE_FUNCTION_2003__
#define __INTERPOLATE_FUNCTION_2003__
//
//  Interp_Funct.h
//  Brian Magill
//  10/17/2003
//
//  This header and its corresponding file Interp_Funct.c serve as 
//  a means of wrapping the GNU Science Library functions so that
//  they can be compiled with C++ routines.
//
//----------------------------------------------------------------------
//

    #ifdef __cplusplus
    extern "C" {
    #endif

    int linear_fit(const double * x, const double * y, long n, 
                    double * intercept, double * slope, double * cov00, 
                    double * cov01, double * cov11, double * sumsq);

    int linear_fit_est(double x, double c0, double c1, double c00, 
                        double c01, double c11, double *y, 
                        double *y_err);

    #ifdef __cplusplus
        }
    #endif


#endif