diff --git a/doc/web/course.dlog b/doc/web/course.dlog
index 0f28d0d12..d06adc184 100644
--- a/doc/web/course.dlog
+++ b/doc/web/course.dlog
@@ -174,3 +174,12 @@ output in course.html
 running mako on course.do.txt to make tmp_mako__course.do.txt
 Translating doconce text in tmp_mako__course.do.txt to html
 output in course.html
+running mako on course.do.txt to make tmp_mako__course.do.txt
+Translating doconce text in tmp_mako__course.do.txt to html
+
+*** error: inconsistent no of = in heading:
+===== Projects Fall 2021 (dates are tentative)=====
+    lengths: 5 and 15, must be equal and odd
+running mako on course.do.txt to make tmp_mako__course.do.txt
+Translating doconce text in tmp_mako__course.do.txt to html
+output in course.html
diff --git a/doc/web/course.do.txt b/doc/web/course.do.txt
index 935fce90b..097606fb3 100644
--- a/doc/web/course.do.txt
+++ b/doc/web/course.do.txt
@@ -64,57 +64,39 @@ ${text_types(ch)}
 
 
 !split
-===== Projects and Exercises Fall 2021, to be updated =====
+===== Projects Fall 2021 (dates are tentative) =====
 
-=== First homework set, week 35  ===
+
+=== Project 1, Deadline October 4 (available September 10) ===
  * LaTeX and PDF:
-     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/pdf/hw1.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/pdf/hw1.pdf"
+     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/pdf/Project1.tex"
+     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/pdf/Project1.pdf"
  * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/html/hw1.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/html/hw1-bs.html"
-
-=== Second homework set, week 36  ===
- * LaTeX and PDF:
-     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/pdf/hw2.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/pdf/hw2.pdf"
- * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/html/hw2.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/html/hw2-bs.html"
-
-
-
-
-=== Project 1, Deadline October 10 (available September 1) ===
- * LaTeX and PDF:
-     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/pdf/Project1.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/pdf/Project1.pdf"
- * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/html/Project1.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/html/Project1-bs.html"
+   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/html/Project1.html"
+   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/html/Project1-bs.html"
  * Jupyter notebook:
-   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/ipynb/Project1.ipynb"
+   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/ipynb/Project1.ipynb"
 
-=== Project 2, Deadline November 13 (available October 6) ===
+=== Project 2, Deadline November 13 (available October 8) ===
  * LaTeX and PDF:
-     * "Latex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/pdf/Project2.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/pdf/Project2.pdf"
+     * "Latex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/pdf/Project2.tex"
+     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/pdf/Project2.pdf"
  * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/html/Project2.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/html/Project2-bs.html"
+   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/html/Project2.html"
+   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/html/Project2-bs.html"
  * Jupyter notebook:
-   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/ipynb/Project2.ipynb"
+   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/ipynb/Project2.ipynb"
 
 
-=== Project 3, Deadline December 16 (available November 9) ===
+=== Project 3, Deadline December 13 (available November 12) ===
  * LaTeX and PDF:
-     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/pdf/Project3.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/pdf/Project3.pdf"
+     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/pdf/Project3.tex"
+     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/pdf/Project3.pdf"
  * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/html/Project3.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/html/Project3-bs.html"
+   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/html/Project3.html"
+   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/html/Project3-bs.html"
  * Jupyter notebook:
-   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/ipynb/Project3.ipynb"
+   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/ipynb/Project3.ipynb"
 
 
 
diff --git a/doc/web/course.html b/doc/web/course.html
index e9eea46b9..a33a4cb4e 100644
--- a/doc/web/course.html
+++ b/doc/web/course.html
@@ -117,30 +117,22 @@ div { text-align: justify; text-justify: inter-word; }
                None,
                'week-49-november-29-december-3-support-vector-machines-and-summary-of-course-with-future-perspectives'),
               ('Textbook', 2, None, 'textbook'),
-              ('Projects and Exercises Fall 2021, to be updated',
+              ('Projects Fall 2021 (dates are tentative)',
                2,
                None,
-               'projects-and-exercises-fall-2021-to-be-updated'),
-              ('First homework set, week 35',
+               'projects-fall-2021-dates-are-tentative'),
+              ('Project 1, Deadline October 4 (available September 10)',
                3,
                None,
-               'first-homework-set-week-35'),
-              ('Second homework set, week 36',
+               'project-1-deadline-october-4-available-september-10'),
+              ('Project 2, Deadline November 13 (available October 8)',
                3,
                None,
-               'second-homework-set-week-36'),
-              ('Project 1, Deadline October 10 (available September 1)',
+               'project-2-deadline-november-13-available-october-8'),
+              ('Project 3, Deadline December 13 (available November 12)',
                3,
                None,
-               'project-1-deadline-october-10-available-september-1'),
-              ('Project 2, Deadline November 13 (available October 6)',
-               3,
-               None,
-               'project-2-deadline-november-13-available-october-6'),
-              ('Project 3, Deadline December 16 (available November 9)',
-               3,
-               None,
-               'project-3-deadline-december-16-available-november-9')]}
+               'project-3-deadline-december-13-available-november-12')]}
 end of tocinfo -->
 
 <body>
@@ -475,117 +467,79 @@ The teaching material is produced in various formats for running codes (jupyter
 
 <!-- !split -->
 
-<h2 id="projects-and-exercises-fall-2021-to-be-updated">Projects and Exercises Fall 2021, to be updated </h2>
+<h2 id="projects-fall-2021-dates-are-tentative">Projects Fall 2021 (dates are tentative) </h2>
 
-<h3 id="first-homework-set-week-35">First homework set, week 35  </h3>
+<h3 id="project-1-deadline-october-4-available-september-10">Project 1, Deadline October 4 (available September 10) </h3>
 
 <ul>
  <li> LaTeX and PDF:</li>
 
 <ul>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/pdf/hw1.tex" target="_self">LaTex file</a></li>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/pdf/hw1.pdf" target="_self">PDF file</a></li>
+     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/pdf/Project1.tex" target="_self">LaTex file</a></li>
+     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/pdf/Project1.pdf" target="_self">PDF file</a></li>
 </ul>
 
  <li> HTML:</li>
 
 <ul>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/html/hw1.html" target="_self">Plain html</a></li>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/html/hw1-bs.html" target="_self">Bootstrap  slide style, easy for reading on mobile devices</a></li>
-</ul>
-
-</ul>
-
-<h3 id="second-homework-set-week-36">Second homework set, week 36  </h3>
-
-<ul>
- <li> LaTeX and PDF:</li>
-
-<ul>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/pdf/hw2.tex" target="_self">LaTex file</a></li>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/pdf/hw2.pdf" target="_self">PDF file</a></li>
-</ul>
-
- <li> HTML:</li>
-
-<ul>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/html/hw2.html" target="_self">Plain html</a></li>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/html/hw2-bs.html" target="_self">Bootstrap  slide style, easy for reading on mobile devices</a></li>
-</ul>
-
-</ul>
-
-<h3 id="project-1-deadline-october-10-available-september-1">Project 1, Deadline October 10 (available September 1) </h3>
-
-<ul>
- <li> LaTeX and PDF:</li>
-
-<ul>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/pdf/Project1.tex" target="_self">LaTex file</a></li>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/pdf/Project1.pdf" target="_self">PDF file</a></li>
-</ul>
-
- <li> HTML:</li>
-
-<ul>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/html/Project1.html" target="_self">Plain html</a></li>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/html/Project1-bs.html" target="_self">Bootstrap  slide style, easy for reading on mobile devices</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/html/Project1.html" target="_self">Plain html</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/html/Project1-bs.html" target="_self">Bootstrap  slide style, easy for reading on mobile devices</a></li>
 </ul>
 
  <li> Jupyter notebook:</li>
 
 <ul>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/ipynb/Project1.ipynb" target="_self">ipynb file</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/ipynb/Project1.ipynb" target="_self">ipynb file</a></li>
 </ul>
 
 </ul>
 
-<h3 id="project-2-deadline-november-13-available-october-6">Project 2, Deadline November 13 (available October 6) </h3>
+<h3 id="project-2-deadline-november-13-available-october-8">Project 2, Deadline November 13 (available October 8) </h3>
 
 <ul>
  <li> LaTeX and PDF:</li>
 
 <ul>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/pdf/Project2.tex" target="_self">Latex file</a></li>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/pdf/Project2.pdf" target="_self">PDF file</a></li>
+     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/pdf/Project2.tex" target="_self">Latex file</a></li>
+     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/pdf/Project2.pdf" target="_self">PDF file</a></li>
 </ul>
 
  <li> HTML:</li>
 
 <ul>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/html/Project2.html" target="_self">Plain html</a></li>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/html/Project2-bs.html" target="_self">Bootstrap  slide style, easy for reading on mobile devices</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/html/Project2.html" target="_self">Plain html</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/html/Project2-bs.html" target="_self">Bootstrap  slide style, easy for reading on mobile devices</a></li>
 </ul>
 
  <li> Jupyter notebook:</li>
 
 <ul>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/ipynb/Project2.ipynb" target="_self">ipynb file</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/ipynb/Project2.ipynb" target="_self">ipynb file</a></li>
 </ul>
 
 </ul>
 
-<h3 id="project-3-deadline-december-16-available-november-9">Project 3, Deadline December 16 (available November 9) </h3>
+<h3 id="project-3-deadline-december-13-available-november-12">Project 3, Deadline December 13 (available November 12) </h3>
 
 <ul>
  <li> LaTeX and PDF:</li>
 
 <ul>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/pdf/Project3.tex" target="_self">LaTex file</a></li>
-     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/pdf/Project3.pdf" target="_self">PDF file</a></li>
+     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/pdf/Project3.tex" target="_self">LaTex file</a></li>
+     <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/pdf/Project3.pdf" target="_self">PDF file</a></li>
 </ul>
 
  <li> HTML:</li>
 
 <ul>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/html/Project3.html" target="_self">Plain html</a></li>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/html/Project3-bs.html" target="_self">Bootstrap  slide style, easy for reading on mobile devices</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/html/Project3.html" target="_self">Plain html</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/html/Project3-bs.html" target="_self">Bootstrap  slide style, easy for reading on mobile devices</a></li>
 </ul>
 
  <li> Jupyter notebook:</li>
 
 <ul>
-   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/ipynb/Project3.ipynb" target="_self">ipynb file</a></li>
+   <li> <a href="http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/ipynb/Project3.ipynb" target="_self">ipynb file</a></li>
 </ul>
 
 </ul>
diff --git a/doc/web/tmp_mako__course.do.txt b/doc/web/tmp_mako__course.do.txt
index fbdcd1bba..e2734bba0 100644
--- a/doc/web/tmp_mako__course.do.txt
+++ b/doc/web/tmp_mako__course.do.txt
@@ -208,57 +208,39 @@ The teaching material is produced in various formats for running codes (jupyter
 
 
 !split
-===== Projects and Exercises Fall 2021, to be updated =====
+===== Projects Fall 2021 (dates are tentative) =====
 
-=== First homework set, week 35  ===
+
+=== Project 1, Deadline October 4 (available September 10) ===
  * LaTeX and PDF:
-     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/pdf/hw1.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/pdf/hw1.pdf"
+     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/pdf/Project1.tex"
+     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/pdf/Project1.pdf"
  * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/html/hw1.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw1/html/hw1-bs.html"
-
-=== Second homework set, week 36  ===
- * LaTeX and PDF:
-     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/pdf/hw2.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/pdf/hw2.pdf"
- * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/html/hw2.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/hw2/html/hw2-bs.html"
-
-
-
-
-=== Project 1, Deadline October 10 (available September 1) ===
- * LaTeX and PDF:
-     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/pdf/Project1.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/pdf/Project1.pdf"
- * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/html/Project1.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/html/Project1-bs.html"
+   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/html/Project1.html"
+   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/html/Project1-bs.html"
  * Jupyter notebook:
-   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project1/ipynb/Project1.ipynb"
+   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project1/ipynb/Project1.ipynb"
 
-=== Project 2, Deadline November 13 (available October 6) ===
+=== Project 2, Deadline November 13 (available October 8) ===
  * LaTeX and PDF:
-     * "Latex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/pdf/Project2.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/pdf/Project2.pdf"
+     * "Latex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/pdf/Project2.tex"
+     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/pdf/Project2.pdf"
  * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/html/Project2.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/html/Project2-bs.html"
+   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/html/Project2.html"
+   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/html/Project2-bs.html"
  * Jupyter notebook:
-   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project2/ipynb/Project2.ipynb"
+   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project2/ipynb/Project2.ipynb"
 
 
-=== Project 3, Deadline December 16 (available November 9) ===
+=== Project 3, Deadline December 13 (available November 12) ===
  * LaTeX and PDF:
-     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/pdf/Project3.tex"
-     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/pdf/Project3.pdf"
+     * "LaTex file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/pdf/Project3.tex"
+     * "PDF file":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/pdf/Project3.pdf"
  * HTML:
-   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/html/Project3.html"
-   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/html/Project3-bs.html"
+   * "Plain html":"http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/html/Project3.html"
+   * "Bootstrap  slide style, easy for reading on mobile devices": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/html/Project3-bs.html"
  * Jupyter notebook:
-   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2020/Project3/ipynb/Project3.ipynb"
+   * "ipynb file": "http://compphysics.github.io/MachineLearning/doc/Projects/2021/Project3/ipynb/Project3.ipynb"