calc()

bool FF_LUComputation::calc ( )

private

Definition at line 81 of file fractionfreeLU.cpp.

{
  int c1;
  while (choose_pivot_column(0, --pivot_col, c1))
    {
      if (system_interrupted()) return false;
 
      if (pivot_col != c1)
        {
          M->interchange_columns(pivot_col, c1);
 
          // swap need_div[pivot_col], need_div[c1]
          bool tmp = need_div[pivot_col];
          need_div[pivot_col] = need_div[c1];
          need_div[c1] = tmp;
 
          // swap col_perm
          int ctmp = col_perm[pivot_col];
          col_perm[pivot_col] = col_perm[c1];
          col_perm[c1] = ctmp;
        }
 
      do_pivots(0, pivot_col - 1, pivot_col);
    }
  return true;
}

References choose_pivot_column(), col_perm, do_pivots(), M, need_div, pivot_col, and system_interrupted().

Referenced by DO().