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Uladzimir Karpenka
2026-06-01 15:58:45 +03:00
commit 89c8a0e2b5
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lmath.h
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/* lmath.h
This file is part of a program that implements a Software-Defined Radio.
Copyright (C) 2015, 2023 Warren Pratt, NR0V
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.
The author can be reached by email at
warren@wpratt.com
*/
extern void dR (int n, double* r, double* y, double* z);
extern void trI (
int n,
double* r,
double* B,
double* y,
double* v,
double* dR_z
);
extern void asolve(int xsize, int asize, double* x, double* a, double* r, double* z);
extern void median(int n, double* a, double* med);
#ifndef _bldr_h
#define _bldr_h
typedef struct _bldr
{
double* catxy;
double* sx;
double* sy;
double* h;
int* p;
int* np;
double* taa;
double* tab;
double* tag;
double* tad;
double* tbb;
double* tbg;
double* tbd;
double* tgg;
double* tgd;
double* tdd;
double* A;
double* B;
double* C;
double* D;
double* E;
double* F;
double* G;
double* MAT;
double* RHS;
double* SLN;
double* z;
double* zp;
double* wrk;
int* ipiv;
} bldr, *BLDR;
extern BLDR create_builder(int points, int ints);
extern void destroy_builder(BLDR a);
extern void flush_builder(BLDR a, int points, int ints);
extern void xbuilder(BLDR a, int points, double* x, double* y, int ints, double* t, int* info, double* c, double ptol);
extern int fcompare(const void* a, const void* b);
extern void decomp(int n, double* a, int* piv, int* info, double* wrk);
extern void dsolve(int n, double* a, int* piv, double* b, double* x);
#endif