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diff --git a/thirdparty/includes/GSL/gsl/gsl_interp2d.h b/thirdparty/includes/GSL/gsl/gsl_interp2d.h
deleted file mode 100644
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--- a/thirdparty/includes/GSL/gsl/gsl_interp2d.h
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@@ -1,160 +0,0 @@
-/* interpolation/gsl_interp2d.h
- *
- * Copyright 2012 David Zaslavsky
- *
- * 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 3 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_INTERP2D_H__
-#define __GSL_INTERP2D_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
-
-typedef struct {
- const char* name;
- unsigned int min_size;
- void * (*alloc)(size_t xsize, size_t ysize);
- int (*init)(void *, const double xa[], const double ya[], const double za[], size_t xsize, size_t ysize);
- int (*eval)(const void *, const double xa[], const double ya[], const double za[], size_t xsize, size_t ysize, double x, double y, gsl_interp_accel*, gsl_interp_accel*, double* z);
- int (*eval_deriv_x) (const void *, const double xa[], const double ya[], const double za[], size_t xsize, size_t ysize, double x, double y, gsl_interp_accel*, gsl_interp_accel*, double* z_p);
- int (*eval_deriv_y) (const void *, const double xa[], const double ya[], const double za[], size_t xsize, size_t ysize, double x, double y, gsl_interp_accel*, gsl_interp_accel*, double* z_p);
- int (*eval_deriv_xx) (const void *, const double xa[], const double ya[], const double za[], size_t xsize, size_t ysize, double x, double y, gsl_interp_accel*, gsl_interp_accel*, double* z_pp);
- int (*eval_deriv_xy) (const void *, const double xa[], const double ya[], const double za[], size_t xsize, size_t ysize, double x, double y, gsl_interp_accel*, gsl_interp_accel*, double* z_pp);
- int (*eval_deriv_yy) (const void *, const double xa[], const double ya[], const double za[], size_t xsize, size_t ysize, double x, double y, gsl_interp_accel*, gsl_interp_accel*, double* z_pp);
- void (*free)(void *);
-} gsl_interp2d_type;
-
-typedef struct {
- const gsl_interp2d_type * type; /* interpolation type */
- double xmin; /* minimum value of x for which data have been provided */
- double xmax; /* maximum value of x for which data have been provided */
- double ymin; /* minimum value of y for which data have been provided */
- double ymax; /* maximum value of y for which data have been provided */
- size_t xsize; /* number of x values provided */
- size_t ysize; /* number of y values provided */
- void * state; /* internal state object specific to the interpolation type */
-} gsl_interp2d;
-
-/* available types */
-GSL_VAR const gsl_interp2d_type * gsl_interp2d_bilinear;
-GSL_VAR const gsl_interp2d_type * gsl_interp2d_bicubic;
-
-gsl_interp2d * gsl_interp2d_alloc(const gsl_interp2d_type * T, const size_t xsize,
- const size_t ysize);
-
-const char * gsl_interp2d_name(const gsl_interp2d * interp);
-size_t gsl_interp2d_min_size(const gsl_interp2d * interp);
-size_t gsl_interp2d_type_min_size(const gsl_interp2d_type * T);
-int gsl_interp2d_set(const gsl_interp2d * interp, double zarr[],
- const size_t i, const size_t j, const double z);
-double gsl_interp2d_get(const gsl_interp2d * interp, const double zarr[],
- const size_t i, const size_t j);
-size_t gsl_interp2d_idx(const gsl_interp2d * interp,
- const size_t i, const size_t j);
-int gsl_interp2d_init(gsl_interp2d * interp, const double xa[], const double ya[],
- const double za[], const size_t xsize, const size_t ysize);
-void gsl_interp2d_free(gsl_interp2d * interp);
-
-double gsl_interp2d_eval(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[], const double x,
- const double y, gsl_interp_accel * xa, gsl_interp_accel * ya);
-
-double gsl_interp2d_eval_extrap(const gsl_interp2d * interp,
- const double xarr[], const double yarr[],
- const double zarr[], const double x,
- const double y, gsl_interp_accel * xa,
- gsl_interp_accel * ya);
-
-int gsl_interp2d_eval_e(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y, gsl_interp_accel* xa,
- gsl_interp_accel* ya, double * z);
-
-int gsl_interp2d_eval_e_extrap(const gsl_interp2d * interp,
- const double xarr[],
- const double yarr[],
- const double zarr[],
- const double x,
- const double y,
- gsl_interp_accel * xa,
- gsl_interp_accel * ya,
- double * z);
-
-double gsl_interp2d_eval_deriv_x(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y, gsl_interp_accel * xa,
- gsl_interp_accel * ya);
-
-int gsl_interp2d_eval_deriv_x_e(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel * xa, gsl_interp_accel * ya, double * z);
-
-double gsl_interp2d_eval_deriv_y(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel* xa, gsl_interp_accel* ya);
-
-int gsl_interp2d_eval_deriv_y_e(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel * xa, gsl_interp_accel * ya, double * z);
-
-double gsl_interp2d_eval_deriv_xx(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel * xa, gsl_interp_accel * ya);
-
-int gsl_interp2d_eval_deriv_xx_e(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel * xa, gsl_interp_accel * ya, double * z);
-
-double gsl_interp2d_eval_deriv_yy(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel * xa, gsl_interp_accel * ya);
-
-int gsl_interp2d_eval_deriv_yy_e(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel * xa, gsl_interp_accel * ya, double * z);
-
-double gsl_interp2d_eval_deriv_xy(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel * xa, gsl_interp_accel * ya);
-
-int gsl_interp2d_eval_deriv_xy_e(const gsl_interp2d * interp, const double xarr[],
- const double yarr[], const double zarr[],
- const double x, const double y,
- gsl_interp_accel * xa, gsl_interp_accel * ya, double * z);
-
-
-__END_DECLS
-
-#endif /* __GSL_INTERP2D_H__ */
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