spline.h

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// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

 
#ifndef _SPLINE_H
#define _SPLINE_H
 
namespace stfnum {
    Vector_double d3_np_fs(Vector_double& a, const Vector_double& b);
    void dvec_bracket3 (const Vector_double& t, double tval, int& left );
    Vector_double spline_cubic_set ( const Vector_double& t, const Vector_double& y, 
                                     int ibcbeg, double ybcbeg, int ibcend, double ybcend );
    double spline_cubic_val (const Vector_double& t, double tval, const Vector_double& y, 
                             const Vector_double& ypp, double& ypval, double& yppval );
}
 
#endif