Clean up vector space method docstrings

galois/_fields/_array.py

@@ -1627,14 +1627,18 @@ def row_space(self) -> FieldArray:
  Examples
  --------
  The :func:`row_space` method defines basis vectors (its rows) that span the row space of :math:`\mathbf{A}`.
- The dimension of the row space and left null space sum to :math:`m`.
 
  .. ipython:: python
 
  m, n = 5, 3
  GF = galois.GF(31)
  A = GF.Random((m, n)); A
  R = A.row_space(); R
+
+ The dimension of the row space and left null space sum to :math:`m`.
+
+ .. ipython:: python
+
  LN = A.left_null_space(); LN
  R.shape[0] + LN.shape[0] == m
  """
@@ -1670,14 +1674,18 @@ def column_space(self) -> FieldArray:
  Examples
  --------
  The :func:`column_space` method defines basis vectors (its rows) that span the column space of :math:`\mathbf{A}`.
- The dimension of the column space and null space sum to :math:`n`.
 
  .. ipython:: python
 
  m, n = 3, 5
  GF = galois.GF(31)
  A = GF.Random((m, n)); A
  C = A.column_space(); C
+
+ The dimension of the column space and null space sum to :math:`n`.
+
+ .. ipython:: python
+
  N = A.null_space(); N
  C.shape[0] + N.shape[0] == n
  """
@@ -1709,22 +1717,26 @@ def left_null_space(self) -> FieldArray:
  Examples
  --------
  The :func:`left_null_space` method defines basis vectors (its rows) that span the left null space of :math:`\mathbf{A}`.
- The dimension of the row space and left null space sum to :math:`m`.
 
  .. ipython:: python
 
  m, n = 5, 3
  GF = galois.GF(31)
  A = GF.Random((m, n)); A
- R = A.row_space(); R
  LN = A.left_null_space(); LN
- R.shape[0] + LN.shape[0] == m
 
  The left null space is the set of vectors that sum the rows to 0.
 
  .. ipython:: python
 
  LN @ A
+
+ The dimension of the row space and left null space sum to :math:`m`.
+
+ .. ipython:: python
+
+ R = A.row_space(); R
+ R.shape[0] + LN.shape[0] == m
  """
  field = type(self)
  A = self
@@ -1768,22 +1780,26 @@ def null_space(self) -> FieldArray:
  Examples
  --------
  The :func:`null_space` method defines basis vectors (its rows) that span the null space of :math:`\mathbf{A}`.
- The dimension of the column space and null space sum to :math:`n`.
 
  .. ipython:: python
 
  m, n = 3, 5
  GF = galois.GF(31)
  A = GF.Random((m, n)); A
- C = A.column_space(); C
  N = A.null_space(); N
- C.shape[0] + N.shape[0] == n
 
  The null space is the set of vectors that sum the columns to 0.
 
  .. ipython:: python
 
  A @ N.T
+
+ The dimension of the column space and null space sum to :math:`n`.
+
+ .. ipython:: python
+
+ C = A.column_space(); C
+ C.shape[0] + N.shape[0] == n
  """
  A = self
  if not A.ndim == 2: