numpy.matlib.empty(shape, dtype=None, order='C')

numpy.nanargmax(a, axis=None)

numpy.iscomplexobj(x)

numpy.can_cast(from, totype, casting = 'safe') Returns True if cast between data types can occur according to the casting rule

numpy.bitwise_and(x1, x2[, out]) = Compute the bit-wise AND of two arrays element-wise. Computes the bit-wise AND of

numpy.tril_indices_from(arr, k=0)

numpy.searchsorted(a, v, side='left', sorter=None)

numpy.hsplit(ary, indices_or_sections)

numpy.ma.dot(a, b, strict=False, out=None)

numpy.vstack(tup)