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diff --git a/gsl-1.9/matrix/gsl_matrix_double.h b/gsl-1.9/matrix/gsl_matrix_double.h
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+/* matrix/gsl_matrix_double.h
+ *
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman, 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_MATRIX_DOUBLE_H__
+#define __GSL_MATRIX_DOUBLE_H__
+
+#include <stdlib.h>
+#include <gsl/gsl_types.h>
+#include <gsl/gsl_errno.h>
+#include <gsl/gsl_check_range.h>
+#include <gsl/gsl_vector_double.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
+{
+ size_t size1;
+ size_t size2;
+ size_t tda;
+ double * data;
+ gsl_block * block;
+ int owner;
+} gsl_matrix;
+
+typedef struct
+{
+ gsl_matrix matrix;
+} _gsl_matrix_view;
+
+typedef _gsl_matrix_view gsl_matrix_view;
+
+typedef struct
+{
+ gsl_matrix matrix;
+} _gsl_matrix_const_view;
+
+typedef const _gsl_matrix_const_view gsl_matrix_const_view;
+
+/* Allocation */
+
+gsl_matrix *
+gsl_matrix_alloc (const size_t n1, const size_t n2);
+
+gsl_matrix *
+gsl_matrix_calloc (const size_t n1, const size_t n2);
+
+gsl_matrix *
+gsl_matrix_alloc_from_block (gsl_block * b,
+ const size_t offset,
+ const size_t n1,
+ const size_t n2,
+ const size_t d2);
+
+gsl_matrix *
+gsl_matrix_alloc_from_matrix (gsl_matrix * m,
+ const size_t k1,
+ const size_t k2,
+ const size_t n1,
+ const size_t n2);
+
+gsl_vector *
+gsl_vector_alloc_row_from_matrix (gsl_matrix * m,
+ const size_t i);
+
+gsl_vector *
+gsl_vector_alloc_col_from_matrix (gsl_matrix * m,
+ const size_t j);
+
+void gsl_matrix_free (gsl_matrix * m);
+
+/* Views */
+
+_gsl_matrix_view
+gsl_matrix_submatrix (gsl_matrix * m,
+ const size_t i, const size_t j,
+ const size_t n1, const size_t n2);
+
+_gsl_vector_view
+gsl_matrix_row (gsl_matrix * m, const size_t i);
+
+_gsl_vector_view
+gsl_matrix_column (gsl_matrix * m, const size_t j);
+
+_gsl_vector_view
+gsl_matrix_diagonal (gsl_matrix * m);
+
+_gsl_vector_view
+gsl_matrix_subdiagonal (gsl_matrix * m, const size_t k);
+
+_gsl_vector_view
+gsl_matrix_superdiagonal (gsl_matrix * m, const size_t k);
+
+_gsl_matrix_view
+gsl_matrix_view_array (double * base,
+ const size_t n1,
+ const size_t n2);
+
+_gsl_matrix_view
+gsl_matrix_view_array_with_tda (double * base,
+ const size_t n1,
+ const size_t n2,
+ const size_t tda);
+
+
+_gsl_matrix_view
+gsl_matrix_view_vector (gsl_vector * v,
+ const size_t n1,
+ const size_t n2);
+
+_gsl_matrix_view
+gsl_matrix_view_vector_with_tda (gsl_vector * v,
+ const size_t n1,
+ const size_t n2,
+ const size_t tda);
+
+
+_gsl_matrix_const_view
+gsl_matrix_const_submatrix (const gsl_matrix * m,
+ const size_t i, const size_t j,
+ const size_t n1, const size_t n2);
+
+_gsl_vector_const_view
+gsl_matrix_const_row (const gsl_matrix * m,
+ const size_t i);
+
+_gsl_vector_const_view
+gsl_matrix_const_column (const gsl_matrix * m,
+ const size_t j);
+
+_gsl_vector_const_view
+gsl_matrix_const_diagonal (const gsl_matrix * m);
+
+_gsl_vector_const_view
+gsl_matrix_const_subdiagonal (const gsl_matrix * m,
+ const size_t k);
+
+_gsl_vector_const_view
+gsl_matrix_const_superdiagonal (const gsl_matrix * m,
+ const size_t k);
+
+_gsl_matrix_const_view
+gsl_matrix_const_view_array (const double * base,
+ const size_t n1,
+ const size_t n2);
+
+_gsl_matrix_const_view
+gsl_matrix_const_view_array_with_tda (const double * base,
+ const size_t n1,
+ const size_t n2,
+ const size_t tda);
+
+_gsl_matrix_const_view
+gsl_matrix_const_view_vector (const gsl_vector * v,
+ const size_t n1,
+ const size_t n2);
+
+_gsl_matrix_const_view
+gsl_matrix_const_view_vector_with_tda (const gsl_vector * v,
+ const size_t n1,
+ const size_t n2,
+ const size_t tda);
+
+/* Operations */
+
+double gsl_matrix_get(const gsl_matrix * m, const size_t i, const size_t j);
+void gsl_matrix_set(gsl_matrix * m, const size_t i, const size_t j, const double x);
+
+double * gsl_matrix_ptr(gsl_matrix * m, const size_t i, const size_t j);
+const double * gsl_matrix_const_ptr(const gsl_matrix * m, const size_t i, const size_t j);
+
+void gsl_matrix_set_zero (gsl_matrix * m);
+void gsl_matrix_set_identity (gsl_matrix * m);
+void gsl_matrix_set_all (gsl_matrix * m, double x);
+
+int gsl_matrix_fread (FILE * stream, gsl_matrix * m) ;
+int gsl_matrix_fwrite (FILE * stream, const gsl_matrix * m) ;
+int gsl_matrix_fscanf (FILE * stream, gsl_matrix * m);
+int gsl_matrix_fprintf (FILE * stream, const gsl_matrix * m, const char * format);
+
+int gsl_matrix_memcpy(gsl_matrix * dest, const gsl_matrix * src);
+int gsl_matrix_swap(gsl_matrix * m1, gsl_matrix * m2);
+
+int gsl_matrix_swap_rows(gsl_matrix * m, const size_t i, const size_t j);
+int gsl_matrix_swap_columns(gsl_matrix * m, const size_t i, const size_t j);
+int gsl_matrix_swap_rowcol(gsl_matrix * m, const size_t i, const size_t j);
+int gsl_matrix_transpose (gsl_matrix * m);
+int gsl_matrix_transpose_memcpy (gsl_matrix * dest, const gsl_matrix * src);
+
+double gsl_matrix_max (const gsl_matrix * m);
+double gsl_matrix_min (const gsl_matrix * m);
+void gsl_matrix_minmax (const gsl_matrix * m, double * min_out, double * max_out);
+
+void gsl_matrix_max_index (const gsl_matrix * m, size_t * imax, size_t *jmax);
+void gsl_matrix_min_index (const gsl_matrix * m, size_t * imin, size_t *jmin);
+void gsl_matrix_minmax_index (const gsl_matrix * m, size_t * imin, size_t * jmin, size_t * imax, size_t * jmax);
+
+int gsl_matrix_isnull (const gsl_matrix * m);
+int gsl_matrix_ispos (const gsl_matrix * m);
+int gsl_matrix_isneg (const gsl_matrix * m);
+
+int gsl_matrix_add (gsl_matrix * a, const gsl_matrix * b);
+int gsl_matrix_sub (gsl_matrix * a, const gsl_matrix * b);
+int gsl_matrix_mul_elements (gsl_matrix * a, const gsl_matrix * b);
+int gsl_matrix_div_elements (gsl_matrix * a, const gsl_matrix * b);
+int gsl_matrix_scale (gsl_matrix * a, const double x);
+int gsl_matrix_add_constant (gsl_matrix * a, const double x);
+int gsl_matrix_add_diagonal (gsl_matrix * a, const double x);
+
+/***********************************************************************/
+/* The functions below are obsolete */
+/***********************************************************************/
+int gsl_matrix_get_row(gsl_vector * v, const gsl_matrix * m, const size_t i);
+int gsl_matrix_get_col(gsl_vector * v, const gsl_matrix * m, const size_t j);
+int gsl_matrix_set_row(gsl_matrix * m, const size_t i, const gsl_vector * v);
+int gsl_matrix_set_col(gsl_matrix * m, const size_t j, const gsl_vector * v);
+
+/* inline functions if you are using GCC */
+
+#ifdef HAVE_INLINE
+extern inline
+double
+gsl_matrix_get(const gsl_matrix * m, const size_t i, const size_t j)
+{
+#if GSL_RANGE_CHECK
+ if (i >= m->size1)
+ {
+ GSL_ERROR_VAL("first index out of range", GSL_EINVAL, 0) ;
+ }
+ else if (j >= m->size2)
+ {
+ GSL_ERROR_VAL("second index out of range", GSL_EINVAL, 0) ;
+ }
+#endif
+ return m->data[i * m->tda + j] ;
+}
+
+extern inline
+void
+gsl_matrix_set(gsl_matrix * m, const size_t i, const size_t j, const double x)
+{
+#if GSL_RANGE_CHECK
+ if (i >= m->size1)
+ {
+ GSL_ERROR_VOID("first index out of range", GSL_EINVAL) ;
+ }
+ else if (j >= m->size2)
+ {
+ GSL_ERROR_VOID("second index out of range", GSL_EINVAL) ;
+ }
+#endif
+ m->data[i * m->tda + j] = x ;
+}
+
+extern inline
+double *
+gsl_matrix_ptr(gsl_matrix * m, const size_t i, const size_t j)
+{
+#if GSL_RANGE_CHECK
+ if (i >= m->size1)
+ {
+ GSL_ERROR_NULL("first index out of range", GSL_EINVAL) ;
+ }
+ else if (j >= m->size2)
+ {
+ GSL_ERROR_NULL("second index out of range", GSL_EINVAL) ;
+ }
+#endif
+ return (double *) (m->data + (i * m->tda + j)) ;
+}
+
+extern inline
+const double *
+gsl_matrix_const_ptr(const gsl_matrix * m, const size_t i, const size_t j)
+{
+#if GSL_RANGE_CHECK
+ if (i >= m->size1)
+ {
+ GSL_ERROR_NULL("first index out of range", GSL_EINVAL) ;
+ }
+ else if (j >= m->size2)
+ {
+ GSL_ERROR_NULL("second index out of range", GSL_EINVAL) ;
+ }
+#endif
+ return (const double *) (m->data + (i * m->tda + j)) ;
+}
+
+#endif
+
+__END_DECLS
+
+#endif /* __GSL_MATRIX_DOUBLE_H__ */
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