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formtovec.c
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formtovec.c
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#include "typedef.h"
#include "getput.h"
#include "bravais.h"
#include "matrix.h"
int main (int argc, char *argv[])
{
matrix_TYP **Mat;
matrix_TYP **F, *V;
bravais_TYP *G;
int i, d, Fanz, anz;
read_header(argc, argv);
if(FILEANZ != 2 || (is_option('h') && optionnumber('h') == 0))
{
printf("Usage: %s 'file1' 'file2' [-m] [-d]\n",argv[0]);
printf("\n");
printf(" file1: matrix_TYP\n");
printf(" file2: matrix_TYP or bravais_TYP.\n");
printf("\n");
printf("For each matrix A in file1 a vector V is calculated\n");
printf("with the following property:\n");
printf(" A = 1/V[NO+1] * (V[1] * F_1 + V[2] * F_2 +...+ V[NO] * F_NO),\n");
printf("Where is F_i are the matrices in file2 if file2 is a\n");
printf("matrix_TYP, otherwise are the matrices describing the\n");
printf("form space of the bravais group in file2.\n");
printf("CAUTION: if not used with the option -d, the denominator\n");
printf(" is not printed, so you will get a vector with\n");
printf(" only NO columns.\n");
printf("\n");
printf("Options:\n");
printf(" -m: Use a modular (but exact) method to calculate \n");
printf(" the result. The result is calculated for a couple\n");
printf(" of big primes and fitted together with the chinese\n");
printf(" remainder theorem.\n");
printf(" This method is much faster and avoids trouble with\n");
printf(" overflow, BUT IS ABLE TO HANDLE THE CASE V[NO+1] == 1\n");
printf(" ONLY (AND WILL RUN INTO AN INFINITE LOOP OTHERWISE).\n");
printf(" -d: give the denominator in the NO+1-th colunm.\n");
printf("\n");
printf("\n");
if (is_option('h')){
exit(0);
}
else{
exit(31);
}
}
Mat = mget_mat (FILENAMES[0], &anz);
G = get_bravais(FILENAMES[1]);
if(G->form_no > 0)
{ F = G->form; Fanz = G->form_no;}
else
{ F = G->gen; Fanz = G->gen_no;}
V = init_mat(anz, Fanz+1, "");
if(is_option('m') == TRUE)
{
for(i=0;i<anz;i++)
form_to_vec_modular(V->array.SZ[i], Mat[i], F, Fanz);
V->cols--;
}
else
{
for(i=0;i<anz;i++)
{
form_to_vec(V->array.SZ[i], Mat[i], F, Fanz, &d);
V->array.SZ[i][Fanz] = d;
}
if(is_option('d'))
V->cols = Fanz+1;
else
V->cols = Fanz;
}
put_mat(V, NULL, "matrices written as linear combination", 0);
exit(0);
}