DOC: Avoid using "set of" when talking about an ordered list.

... or when the input isn't/cannot be a set.  I left a few usages, e.g.
in random sampling, where "set" is reasonable as informal description of
an array as the order doesn't matter; however, for e.g. np.gradient the
order of the returned list is clearly important, so "set" is wrong.

Also some other minor doc edits noticed during the grepping: using
`shape` instead of `form` in `cov` is consistent with most other places;
the wording in `Polynomial.trim` now matches other methods on the same
class.

1 files changed, 1 insertions, 1 deletions

diff --git a/numpy/testing/_private/parameterized.py b/numpy/testing/_private/parameterized.py
index ac7db6c40..55a204e3f 100644
--- a/numpy/testing/_private/parameterized.py
+++ b/numpy/testing/_private/parameterized.py
@@ -339,7 +339,7 @@ class parameterized:
                             "'@parameterized.expand' instead.")
 
     def _terrible_magic_get_defining_classes(self):
-        """ Returns the set of parent classes of the class currently being defined.
+        """ Returns the list of parent classes of the class currently being defined.
             Will likely only work if called from the ``parameterized`` decorator.
             This function is entirely @brandon_rhodes's fault, as he suggested
             the implementation: http://stackoverflow.com/a/8793684/71522