/misc/src/release/graphviz-2.18-1/src/graphviz-2.18/lib/neatogen/matrix_ops.h

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00001 /* $Id: matrix_ops.h,v 1.3 2006/12/07 22:49:37 erg Exp $ $Revision: 1.3 $ */
00002 /* vim:set shiftwidth=4 ts=8: */
00003 
00004 /**********************************************************
00005 *      This software is part of the graphviz package      *
00006 *                http://www.graphviz.org/                 *
00007 *                                                         *
00008 *            Copyright (c) 1994-2004 AT&T Corp.           *
00009 *                and is licensed under the                *
00010 *            Common Public License, Version 1.0           *
00011 *                      by AT&T Corp.                      *
00012 *                                                         *
00013 *        Information and Software Systems Research        *
00014 *              AT&T Research, Florham Park NJ             *
00015 **********************************************************/
00016 
00017 #ifdef __cplusplus
00018 extern "C" {
00019 #endif
00020 
00021 
00022 
00023 #ifndef _MATRIX_OPS_H_
00024 #define _MATRIX_OPS_H_
00025 
00026 #include "defs.h"
00027 
00028     extern void cpvec(double *, int, int, double *);
00029     extern double dot(double *, int, int, double *);
00030     extern void scadd(double *, int, int, double, double *);
00031     extern void vecscale(double *, int, int, double, double *);
00032     extern double norm(double *, int, int);
00033 
00034     extern void orthog1(int n, double *vec);
00035     extern void init_vec_orth1(int n, double *vec);
00036     extern void right_mult_with_vector(vtx_data *, int, double *,
00037                                        double *);
00038     extern void right_mult_with_vector_f(float **, int, double *,
00039                                          double *);
00040     extern void vectors_subtraction(int, double *, double *, double *);
00041     extern void vectors_addition(int, double *, double *, double *);
00042     extern void vectors_scalar_mult(int, double *, double, double *);
00043     extern void copy_vector(int n, double *source, double *dest);
00044     extern double vectors_inner_product(int n, double *vector1,
00045                                         double *vector2);
00046     extern double max_abs(int n, double *vector);
00047 #ifdef UNUSED
00048     extern void vectors_mult_addition(int, double *, double, double *);
00049     extern void orthogvec(int, double *, double *);
00050 #endif
00051 
00052     /* sparse matrix extensions: */
00053 
00054 #ifdef UNUSED
00055     extern void mat_mult_vec(vtx_data * L, int n, double *vec,
00056                              double *result);
00057 #endif
00058     extern void right_mult_with_vector_transpose
00059         (double **, int, int, double *, double *);
00060     extern void right_mult_with_vector_d(double **, int, int, double *,
00061                                          double *);
00062     extern void mult_dense_mat(double **, float **, int, int, int,
00063                                float ***C);
00064     extern void mult_dense_mat_d(double **, float **, int, int, int,
00065                                  double ***CC);
00066     extern void mult_sparse_dense_mat_transpose(vtx_data *, double **, int,
00067                                                 int, float ***);
00068     extern boolean power_iteration(double **, int, int, double **, double *,
00069                                 boolean);
00070 
00071 
00072 /*****************************
00073 ** Single precision (float) **
00074 ** version                  **
00075 *****************************/
00076 
00077     extern void orthog1f(int n, float *vec);
00078 #ifdef UNUSED
00079     extern void right_mult_with_vectorf(vtx_data *, int, float *, float *);
00080     extern void right_mult_with_vector_fd(float **, int, float *,
00081                                           double *);
00082 #endif
00083     extern void right_mult_with_vector_ff(float *, int, float *, float *);
00084     extern void vectors_substractionf(int, float *, float *, float *);
00085     extern void vectors_additionf(int n, float *vector1, float *vector2,
00086                                   float *result);
00087     extern void vectors_mult_additionf(int n, float *vector1, float alpha,
00088                                        float *vector2);
00089     extern void vectors_scalar_multf(int n, float *vector, float alpha,
00090                                      float *result);
00091     extern void copy_vectorf(int n, float *source, float *dest);
00092     extern double vectors_inner_productf(int n, float *vector1,
00093                                          float *vector2);
00094     extern void set_vector_val(int n, double val, double *result);
00095     extern void set_vector_valf(int n, float val, float * result);
00096     extern double max_absf(int n, float *vector);
00097     extern void square_vec(int n, float *vec);
00098     extern void invert_vec(int n, float *vec);
00099     extern void sqrt_vec(int n, float *vec);
00100     extern void sqrt_vecf(int n, float *source, float *target);
00101     extern void invert_sqrt_vec(int n, float *vec);
00102 #ifdef UNUSED
00103     extern void init_vec_orth1f(int n, float *vec);
00104     extern void mat_mult_vecf(vtx_data * L, int n, float *vec,
00105                               float *result);
00106 #endif
00107 
00108 #endif
00109 
00110 #ifdef __cplusplus
00111 }
00112 #endif

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