diff --git a/docs/source/index.rst b/docs/source/index.rst
index 0bc5654..34bb940 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -1,5 +1,5 @@
-.. ANDES documentation master file, created by
- sphinx-quickstart on Thu Jun 21 11:11:34 2018.
+.. powerSAS.m documentation master file, created by
+ sphinx-quickstart on 02/21/2023.
You can adapt this file completely to your liking, but it should at least
contain the root `toctree` directive.
@@ -7,66 +7,71 @@
****
Home
****
-
-ANDES is a Python-based free software package for power system simulation, control and analysis.
-It establishes a unique **hybrid symbolic-numeric framework** for modeling differential algebraic
-equations (DAEs) for numerical analysis. Main features of ANDES include
-
-* a unique hybrid symbolic-numeric approach to modeling and simulation that enables descriptive DAE modeling and
- automatic numerical code generation
-* a rich library of transfer functions and discontinuous components (including limiters, dead-bands, and
- saturation) available for prototyping models, which can be readily instantiated as multiple devices for
- system analysis
-* industry-grade second-generation renewable models (solar PV, type 3 and type 4 wind),
- distributed PV and energy storage model
-* comes with the Newton method for power flow calculation, the implicit trapezoidal method for time-domain
- simulation, and full eigenvalue calculation
-* strictly verified models with commercial software. ANDES obtains identical time-domain simulation results for
- IEEE 14-bus and NPCC system with GENROU and multiple controller models. See the verification link for details.
-* developed with performance in mind. While written in Python, ANDES comes with a performance package and can
- finish a 20-second transient simulation of a 2000-bus system in a few seconds on a typical desktop computer
-* out-of-the-box PSS/E raw and dyr file support for available models. Once a model is developed, inputs from a
- dyr file can be readily supported
-* an always up-to-date equation documentation of implemented models
-
-ANDES is currently under active development. To get involved,
-
-* Follow the tutorial at
- `https://andes.readthedocs.io `_
-* Checkout the Notebook examples in the
- `examples folder `_
-* Try ANDES in Jupyter Notebook
- `with Binder `_
-* Download the PDF manual at
- `download `_
-* Report issues in the
- `GitHub issues page `_
-* Learn version control with
- `the command-line git `_ or
- `GitHub Desktop `_
-* If you are looking to develop models, read the
- `Modeling Cookbook `_
-
-This work was supported in part by the Engineering Research Center Program of
-the National Science Foundation and the Department of Energy under NSF Award
-Number EEC-1041877 and the `CURENT `_ Industry Partnership Program.
-**ANDES is made open source as part of the CURENT Large Scale Testbed project.**
-
-ANDES is developed and actively maintained by `Hantao Cui `_.
-See the GitHub repository for a full list of contributors.
+PowerSAS.m is a robust, efficient and scalable power grid analysis framework based on **semi-analytical solutions (SAS)** technology.
+The PowerSAS.m is the version for MATLAB/Octave users. It currently provides the following functionalities (more coming soon!):
+* Steady-state analysis, including power flow (PF), continuation power flow (CPF), contingency analysis.
+* Dynamic security analysis, including voltage stability analysis, transient stability analysis, and flexible user-defined simulation.
+* Hybrid extended-term simulation provides adaptive QSS-dynamic hybrid simulation in extended term with high accuracy and efficiency.
+
+.. ANDES is a Python-based free software package for power system simulation, control and analysis.
+.. It establishes a unique **hybrid symbolic-numeric framework** for modeling differential algebraic
+.. equations (DAEs) for numerical analysis. Main features of ANDES include
+
+.. * a unique hybrid symbolic-numeric approach to modeling and simulation that enables descriptive DAE modeling and
+.. automatic numerical code generation
+.. * a rich library of transfer functions and discontinuous components (including limiters, dead-bands, and
+.. saturation) available for prototyping models, which can be readily instantiated as multiple devices for
+.. system analysis
+.. * industry-grade second-generation renewable models (solar PV, type 3 and type 4 wind),
+.. distributed PV and energy storage model
+.. * comes with the Newton method for power flow calculation, the implicit trapezoidal method for time-domain
+.. simulation, and full eigenvalue calculation
+.. * strictly verified models with commercial software. ANDES obtains identical time-domain simulation results for
+.. IEEE 14-bus and NPCC system with GENROU and multiple controller models. See the verification link for details.
+.. * developed with performance in mind. While written in Python, ANDES comes with a performance package and can
+.. finish a 20-second transient simulation of a 2000-bus system in a few seconds on a typical desktop computer
+.. * out-of-the-box PSS/E raw and dyr file support for available models. Once a model is developed, inputs from a
+.. dyr file can be readily supported
+.. * an always up-to-date equation documentation of implemented models
+
+.. ANDES is currently under active development. To get involved,
+
+.. * Follow the tutorial at
+.. `https://andes.readthedocs.io `_
+.. * Checkout the Notebook examples in the
+.. `examples folder `_
+.. * Try ANDES in Jupyter Notebook
+.. `with Binder `_
+.. * Download the PDF manual at
+.. `download `_
+.. * Report issues in the
+.. `GitHub issues page `_
+.. * Learn version control with
+.. `the command-line git `_ or
+.. `GitHub Desktop `_
+.. * If you are looking to develop models, read the
+.. `Modeling Cookbook `_
+
+.. This work was supported in part by the Engineering Research Center Program of
+.. the National Science Foundation and the Department of Energy under NSF Award
+.. Number EEC-1041877 and the `CURENT `_ Industry Partnership Program.
+.. **ANDES is made open source as part of the CURENT Large Scale Testbed project.**
+
+.. ANDES is developed and actively maintained by `Hantao Cui `_.
+.. See the GitHub repository for a full list of contributors.
.. toctree::
- :caption: ANDES Manual
+ :caption: powerSAS.m Manual
:maxdepth: 3
:hidden: