Function isLiteralInteger

src/compute-engine/rubi/rubi-utils.ts:464–466

(e: Expression)

  if (leafCount(e) > SIMPLIFY_LEAF_CAP) return e;
  const key = activeCaches ? e.toString() : '';
  const cached = activeCaches?.simplify.get(key);
  if (cached !== undefined) return cached;
  const t0 = Date.now();
  let r: Expression;
  try {
    r = e.simplify();