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/* Revision 1.1.1.1 2000/02/04 22:53:20 evaleev
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/* Started PSI 3 repository
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/* Revision 2.1 1991/06/15 18:29:26 seidl
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/* *** empty log message ***
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static char *rcsid = "$Id: lubksb.c,v 1.1.1.1 2000/02/04 22:53:20 evaleev Exp $";
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void lubksb(a,n,indx,b)
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for (i=0; i < n ; i++) {
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for (j=ii; j <= i-1 ; j++) sum -= a[i][j]*b[j];
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for (i=n-1; i >= 0 ; i--) {
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for (j=i+1; j < n ; j++) sum -= a[i][j]*b[j];