@spiceErrorCheck<EOL>def qxq(q1, q2):
q1 = stypes.toDoubleVector(q1)<EOL>q2 = stypes.toDoubleVector(q2)<EOL>vout = stypes.emptyDoubleVector(<NUM_LIT:4>)<EOL>libspice.qxq_c(q1, q2, vout)<EOL>return stypes.cVectorToPython(vout)<EOL>
Multiply two quaternions.

http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/qxq_c.html

:param q1: First SPICE quaternion.
:type q1: 4-Element Array of floats
:param q2: Second SPICE quaternion.
:type q2: 4-Element Array of floats
:return: Product of q1 and q2.
:rtype: 4-Element Array of floats