Just wanted to bring attention to ticket #842<http://projects.scipy.org/scipy/numpy/ticket/842>because I think the fix should be pretty easy. I added a comment: The printing inconsistency is a duplicate of #841<http://projects.scipy.org/scipy/numpy/ticket/841>and has been fixed. What remains odd is that the conjugate is a scalar not an array. In [2]: type(conjugate(array(8+7j))) Out[2]: <type 'numpy.complex128'> In [3]: type((array(8+7j))) Out[3]: <type 'numpy.ndarray'> So I think all that needs to be done is fix the return type conjugate if we agree that it should be an array. Chuck