Update reference of sparse
Sparse matrix
-------------
-CuPy supports sparse matrix using `cuSPARSE <https://developer.nvidia.com/cusparse>`_.
+CuPy supports sparse matrices using `cuSPARSE <https://developer.nvidia.com/cusparse>`_.
These matrices have the same interfaces of `SciPy's sparse matrices <https://docs.scipy.org/doc/scipy/reference/sparse.html>`_.
+.. module:: cupy.sparse
+
+
+Sparse matrix classes
+---------------------
+
.. autosummary::
:toctree: generated/
:nosignatures:
@@ -12,4 +18,34 @@ These matrices have the same interfaces of `SciPy's sparse matrices <https://doc
cupy.sparse.coo_matrix
cupy.sparse.csr_matrix
cupy.sparse.csc_matrix
+ cupy.sparse.dia_matrix
cupy.sparse.spmatrix
+
+
+Functions
+---------
+
+Building sparse matrices
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. autosummary::
+ :toctree: generated/
+ :nosignatures:
+
+ cupy.sparse.eye
+ cupy.sparse.identity
+
+
+Identifying sparse matrices
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. autosummary::
+ :toctree: generated/
+ :nosignatures:
+
+ cupy.sparse.issparse
+ cupy.sparse.isspmatrix
+ cupy.sparse.isspmatrix_csc
+ cupy.sparse.isspmatrix_csr
+ cupy.sparse.isspmatrix_coo
+ cupy.sparse.isspmatrix_dia
