@spiceErrorCheck<EOL>def vpack(x, y, z):
x = ctypes.c_double(x)<EOL>y = ctypes.c_double(y)<EOL>z = ctypes.c_double(z)<EOL>vout = stypes.emptyDoubleVector(<NUM_LIT:3>)<EOL>libspice.vpack_c(x, y, z, vout)<EOL>return stypes.cVectorToPython(vout)<EOL>
Pack three scalar components into a vector.

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

:param x: first scalar component 
:type x: float
:param y: second scalar component 
:type y: float
:param z: third scalar component 
:type z: float
:return: Equivalent 3-vector.
:rtype: 3-Element Array of floats