def coherent_state(n, alpha):

    return exp(- Abs(alpha)**2/2)*(alpha**n)/sqrt(factorial(n))
query device capacity works on a happy Mac OS X host
dataset/ETHPy150Open sympy/sympy/sympy/physics/qho_1d.py/coherent_state--crossover with--dataset/ETHPy150Open tbielawa/bitmath/tests/test_query_device_capacity.py/TestQueryDeviceCapacity.test_query_device_capacity_mac_everything_is_wonderful