Merge branch 'main' into nick/tenmat_docs

# Conflicts:
#	pyttb/sptenmat.py
#	pyttb/tenmat.py
#	pyttb/tensor.py
#	tests/test_sptenmat.py
#	tests/test_tenmat.py

pyttb/tenmat.py

@@ -291,21 +291,6 @@ def double(self) -> np.ndarray:
  """
  Convert a :class:`pyttb.tenmat` to an array of doubles.
 
- Examples
- --------
- >>> T = ttb.tenones((2,2,2))
- >>> TM = T.to_tenmat(rdims=np.array([0]))
- >>> TM # doctest: +NORMALIZE_WHITESPACE
- matrix corresponding to a tensor of shape (2, 2, 2)
- rindices = [ 0 ] (modes of tensor corresponding to rows)
- cindices = [ 1, 2 ] (modes of tensor corresponding to columns)
- data[:, :] =
- [[1. 1. 1. 1.]
- [1. 1. 1. 1.]]
- >>> TM.double() # doctest: +NORMALIZE_WHITESPACE
- array([[1., 1., 1., 1.],
- [1., 1., 1., 1.]])
-
  Examples
  --------
  >>> T = ttb.tenones((2,2,2))