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PPVTTEST.C
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C/C++ Source or Header
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1991-03-28
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1KB
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93 lines
/* OK */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <mem.h>
#include <alloc.h>
#include <dos.h>
#include "anum.h"
#include "sysio.h"
#define MAXDIM 5
void affmat(int dim, double *matrix)
{ int i,j;
for (i=0;i<dim;i++)
{ for (j=0;j<dim;j++) printf("%8.4g ",*(matrix+i*dim+j));
putchar('\n');
}
}
void affvect(int dim, double *vect)
{ int i;
for (i=0;i<dim;)
printf("[%d] = % 10lg\n",++i,*(vect+i));
}
void results(int dim, double *vsol)
{ puts("Solution of A.X=B :");
affvect(dim,vsol);
printf("Core left : %ld bytes.\n",farcoreleft());
}
void main(void)
{ double *mat_A, *vect_B, *vect_X;
int dim,i,j,errcode;
ena_m_beep();
puts("Test program for function part_pivot");
puts("------------------------------------\n");
for (dim=1;dim<=MAXDIM;dim++)
{ mat_A=farcalloc(dim*dim,sizeof(double));
vect_B=farcalloc(dim,sizeof(double));
vect_X=farcalloc(dim,sizeof(double));
for (i=0;i<dim;i++)
{ *(vect_B+i)=(double)(rand()%10)-5;
*(vect_X+i)=(double)(rand()%10)-5;
for(j=0;j<dim;j++)
*(mat_A+i*dim+j)=(double)(rand()%10)-5;
}
printf("\nMatrix order %d\n",dim);
puts("Matrix A");
affmat(dim,mat_A);
puts("\nVector B");
affvect(dim, vect_B);
partial_pivot(dim, mat_A, vect_B, vect_X, &errcode);
SYSMSG(errcode,stderr);
results(dim,vect_X);
farfree(mat_A);
farfree(vect_X);
farfree(vect_B);
}
}