def test_ticket_853(self):
        # cephes
        assert_tol_equal(special.jv(-1, 1), -0.4400505857449335)
        assert_tol_equal(special.jv(-2, 1), 0.1149034849319005)
        assert_tol_equal(special.yv(-1, 1), 0.7812128213002887)
        assert_tol_equal(special.yv(-2, 1), -1.650682606816255)
        assert_tol_equal(special.iv(-1, 1), 0.5651591039924851)
        assert_tol_equal(special.iv(-2, 1), 0.1357476697670383)
        assert_tol_equal(special.kv(-1, 1), 0.6019072301972347)
        assert_tol_equal(special.kv(-2, 1), 1.624838898635178)
        assert_tol_equal(special.jv(-0.5, 1), 0.43109886801837607952)
        assert_tol_equal(special.yv(-0.5, 1), 0.6713967071418031)
        assert_tol_equal(special.iv(-0.5, 1), 1.231200214592967)
        assert_tol_equal(special.kv(-0.5, 1), 0.4610685044478945)
        # amos
        assert_tol_equal(special.jv(-1, 1+0j), -0.4400505857449335)
        assert_tol_equal(special.jv(-2, 1+0j), 0.1149034849319005)
        assert_tol_equal(special.yv(-1, 1+0j), 0.7812128213002887)
        assert_tol_equal(special.yv(-2, 1+0j), -1.650682606816255)

        assert_tol_equal(special.iv(-1, 1+0j), 0.5651591039924851)
        assert_tol_equal(special.iv(-2, 1+0j), 0.1357476697670383)
        assert_tol_equal(special.kv(-1, 1+0j), 0.6019072301972347)
        assert_tol_equal(special.kv(-2, 1+0j), 1.624838898635178)

        assert_tol_equal(special.jv(-0.5, 1+0j), 0.43109886801837607952)
        assert_tol_equal(special.jv(-0.5, 1+1j), 0.2628946385649065-0.827050182040562j)
        assert_tol_equal(special.yv(-0.5, 1+0j), 0.6713967071418031)
        assert_tol_equal(special.yv(-0.5, 1+1j), 0.967901282890131+0.0602046062142816j)

        assert_tol_equal(special.iv(-0.5, 1+0j), 1.231200214592967)
        assert_tol_equal(special.iv(-0.5, 1+1j), 0.77070737376928+0.39891821043561j)
        assert_tol_equal(special.kv(-0.5, 1+0j), 0.4610685044478945)
        assert_tol_equal(special.kv(-0.5, 1+1j), 0.06868578341999-0.38157825981268j)

        assert_tol_equal(special.jve(-0.5,1+0.3j), special.jv(-0.5, 1+0.3j)*exp(-0.3))
        assert_tol_equal(special.yve(-0.5,1+0.3j), special.yv(-0.5, 1+0.3j)*exp(-0.3))
        assert_tol_equal(special.ive(-0.5,0.3+1j), special.iv(-0.5, 0.3+1j)*exp(-0.3))
        assert_tol_equal(special.kve(-0.5,0.3+1j), special.kv(-0.5, 0.3+1j)*exp(0.3+1j))

        assert_tol_equal(special.hankel1(-0.5, 1+1j), special.jv(-0.5, 1+1j) + 1j*special.yv(-0.5,1+1j))
        assert_tol_equal(special.hankel2(-0.5, 1+1j), special.jv(-0.5, 1+1j) - 1j*special.yv(-0.5,1+1j))
Return a CassandraClient instance which uses this CassandraClusterPool
dataset/ETHPy150Open scipy/scipy/scipy/special/tests/test_basic.py/TestBessel.test_ticket_853--crossover with--dataset/ETHPy150Open driftx/Telephus/telephus/pool.py/CassandraClusterPool.keyspaceConnection