1 files changed, 101 insertions, 0 deletions
diff --git a/gsl-1.9/interpolation/gsl_spline.h b/gsl-1.9/interpolation/gsl_spline.h
new file mode 100644
index 0000000..7eb40e9
--- /dev/null
+++ b/gsl-1.9/interpolation/gsl_spline.h
@@ -0,0 +1,101 @@
+/* interpolation/gsl_spline.h
+ * 
+ * Copyright (C) 2001 Brian Gough
+ * 
+ * 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 __GSL_SPLINE_H__
+#define __GSL_SPLINE_H__
+#include <stdlib.h>
+#include <gsl/gsl_interp.h>
+
+#undef __BEGIN_DECLS
+#undef __END_DECLS
+#ifdef __cplusplus
+# define __BEGIN_DECLS extern "C" {
+# define __END_DECLS }
+#else
+# define __BEGIN_DECLS /* empty */
+# define __END_DECLS /* empty */
+#endif
+
+__BEGIN_DECLS
+
+
+/* general interpolation object */
+typedef struct {
+  gsl_interp * interp;
+  double  * x;
+  double  * y;
+  size_t  size;
+} gsl_spline;
+
+gsl_spline *
+gsl_spline_alloc(const gsl_interp_type * T, size_t size);
+     
+int
+gsl_spline_init(gsl_spline * spline, const double xa[], const double ya[], size_t size);
+
+const char * gsl_spline_name(const gsl_spline * spline);
+unsigned int gsl_spline_min_size(const gsl_spline * spline);
+
+
+int
+gsl_spline_eval_e(const gsl_spline * spline, double x,
+                  gsl_interp_accel * a, double * y);
+
+double
+gsl_spline_eval(const gsl_spline * spline, double x, gsl_interp_accel * a);
+
+int
+gsl_spline_eval_deriv_e(const gsl_spline * spline,
+                        double x,
+                        gsl_interp_accel * a,
+                        double * y);
+
+double
+gsl_spline_eval_deriv(const gsl_spline * spline,
+                      double x,
+                      gsl_interp_accel * a);
+
+int
+gsl_spline_eval_deriv2_e(const gsl_spline * spline,
+                         double x,
+                         gsl_interp_accel * a,
+                         double * y);
+
+double
+gsl_spline_eval_deriv2(const gsl_spline * spline,
+                       double x,
+                       gsl_interp_accel * a);
+
+int
+gsl_spline_eval_integ_e(const gsl_spline * spline,
+                        double a, double b,
+                        gsl_interp_accel * acc,
+                        double * y);
+
+double
+gsl_spline_eval_integ(const gsl_spline * spline,
+                      double a, double b,
+                      gsl_interp_accel * acc);
+
+void
+gsl_spline_free(gsl_spline * spline);
+
+__END_DECLS
+
+#endif /* __GSL_INTERP_H__ */