documented interpolation better
@@ -50,7 +50,8 @@ class Pk2D(object):
depending on the value of `is_logp`.
is_logp (boolean): if True, pkfunc/pkarr return/hold the natural
logarithm of the power spectrum. Otherwise, the true value
- of the power spectrum is expected.
+ of the power spectrum is expected. Note that arrays will be
+ interpolated in log space if `is_logp` is set to `True`.
cosmo (:obj:`Cosmology`): Cosmology object. The cosmology object
is needed in order if `pkfunc` is not `None`. The object is
used to determine the sampling rate in scale factor and
