Function k

src/compute-engine/rubi/rubi-utils.ts:950–956

(j: number, l: number, r: number)

      return (
        intsQE(p, q) ||
        igtQE(p, 0) ||
        igtQE(q, 0) ||
        (eqNum(n, 2) &&
          (intsQE(m, p.mul(2), q.mul(2)) ||
            intsQE(m.mul(2), p, q.mul(2)) ||
            intsQE(m.mul(2), p.mul(2), q))) ||
        (eqNum(n, 4) && (intsQE(m, p, q.mul(2)) || intsQE(m, p.mul(2), q))) ||
        (eqNum(n, 2) &&
          intsQE(m.div(2), p.add(third), q) &&
          (zeroQ(bc.add(ad.mul(3))) || zeroQ(bc.sub(ad.mul(9))))) ||