In [3]: ?adder.adder.zadd
Call signature: adder.adder.zadd(*args, **kwargs)
Type:           fortran
String form:    <fortran function zadd>
Docstring:
c = zadd(a,b)

Wrapper for ``zadd``.

Parameters
----------
a : input rank-1 array('D') with bounds (n)
b : input rank-1 array('D') with bounds (n)

Returns
-------
c : rank-1 array('D') with bounds (n)