spair_make_skew()

gbA::spair * gbA::spair_make_skew ( int i, int v )

private

Definition at line 491 of file gb-default.cpp.

{
  spair *result;
  int j;
  gbelem *g1 = gb[i];
  exponents_t exp1 = g1->lead;
  exponents_t exp2 = exponents_make();
  int vvar = R->skew_variable(v);
  for (j = 0; j < _nvars; j++) exp2[j] = 0;
  exp2[vvar] = 2;
  result = spair_node();
  result->next = nullptr;
  result->type = SPAIR::SPAIR_SKEW;
  result->lcm = exp2;
  exponents_lcm(_nvars, g1->deg, exp1, exp2, exp2, gb_weights, result->deg);
  result->x.pair.i = i;
  result->x.pair.j = v;
 
  return result;
}

References _nvars, gbA::gbelem::deg, exponents_lcm(), exponents_make(), gb(), gb_weights, gbA::gbelem::lead, R, result(), spair_node(), and SPAIR_SKEW.

Referenced by update_pairs().