point_double_small
point_double_small(pre_comp[i][j][0],
point_double_small(pre->g_pre_comp[1][i][0], pre->g_pre_comp[1][i][1],
point_double_small(pre->g_pre_comp[1][i][0],
point_double_small(pre->g_pre_comp[0][2 * i][0],
point_double_small(pre->g_pre_comp[0][2 * i][0],