From 10d0d9da0b31da48e3321dd9b2b522471ab95e7d Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Tue, 19 Oct 2021 10:05:13 +1100
Subject: [PATCH 01/34] changes necessary for pdf build

---
 lectures/applications/heterogeneity.md    |  9 ++++-----
 lectures/applications/regression.md       | 12 ++++++------
 lectures/problem_sets/problem_set_3.md    |  4 ++--
 lectures/python_fundamentals/functions.md |  4 ++--
 lectures/scientific/applied_linalg.md     |  4 ++--
 lectures/scientific/numpy_arrays.md       |  4 ++--
 6 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/lectures/applications/heterogeneity.md b/lectures/applications/heterogeneity.md
index 84bb4cfa..28e91f80 100644
--- a/lectures/applications/heterogeneity.md
+++ b/lectures/applications/heterogeneity.md
@@ -101,12 +101,12 @@ When treatment is randomly assigned, we can estimate average treatment
 effects because
 
 $$
-\begin{align*}
+\begin{aligned}
 E[y_i(1) - y_i(0) ] = & E[y_i(1)] - E[y_i(0)] \\
 & \text{random assignment } \\
 = & E[y_i(1) | d_i = 1] - E[y_i(0) | d_i = 0] \\
 = & E[y_i | d_i = 1] - E[y_i | d_i = 0 ]
-\end{align*}
+\end{aligned}
 $$
 
 ### Average Treatment Effects
@@ -164,12 +164,12 @@ logic that lets us estimate unconditional average treatment effects
 also suggests that we can estimate conditional average treatment effects.
 
 $$
-\begin{align*}
+\begin{aligned}
 E[y_i(1) - y_i(0) |X_i=x] = & E[y_i(1)|X_i = x] - E[y_i(0)|X_i=x] \\
 & \text{random assignment } \\
 = & E[y_i(1) | d_i = 1, X_i=x] - E[y_i(0) | d_i = 0, X_i=x] \\
 = & E[y_i | d_i = 1, X_i = x] - E[y_i | d_i = 0, X_i=x ]
-\end{align*}
+\end{aligned}
 $$
 
 Conditional average treatment effects tell us whether there are
@@ -209,7 +209,6 @@ $S(x)$ approximates $s_0(x)$ is to look at the best linear
 projection of $s_0(x)$ on $S(x)$.
 
 $$
-\DeclareMathOperator*{\argmin}{arg\,min}
 \beta_0, \beta_1 = \argmin_{b_0,b_1} E[(s_0(x) -
 b_0 - b_1 (S(x)-E[S(x)]))^2]
 $$
diff --git a/lectures/applications/regression.md b/lectures/applications/regression.md
index 0545d969..e3d5f81e 100644
--- a/lectures/applications/regression.md
+++ b/lectures/applications/regression.md
@@ -123,7 +123,7 @@ only the livable square footage of the home.
 The linear regression model for this situation is
 
 $$
-\log(\text{price}) = \beta_0 + \beta_1 \text{sqft_living} + \epsilon
+\log(\text{price}) = \beta_0 + \beta_1 \text{sqft\_living} + \epsilon
 $$
 
 $\beta_0$ and $\beta_1$ are called parameters (also coefficients or
@@ -132,14 +132,14 @@ that best fit the data.
 
 $\epsilon$ is the error term. It would be unusual for the observed
 $\log(\text{price})$ to be an exact linear function of
-$\text{sqft_living}$. The error term captures the deviation of
-$\log(\text{price})$ from a linear function of $\text{sqft_living}$.
+$\text{sqft\_living}$. The error term captures the deviation of
+$\log(\text{price})$ from a linear function of $\text{sqft\_living}$.
 
 The linear regression algorithm will choose the parameters that minimize the
 *mean squared error* (MSE) function, which for our example is written.
 
 $$
-\frac{1}{N} \sum_{i=1}^N \left(\log(\text{price}_i) - (\beta_0 + \beta_1 \text{sqft_living}_i) \right)^2
+\frac{1}{N} \sum_{i=1}^N \left(\log(\text{price}_i) - (\beta_0 + \beta_1 \text{sqft\_living}_i) \right)^2
 $$
 
 The output of this algorithm is the straight line (hence linear) that passes as
@@ -218,7 +218,7 @@ Suppose that in addition to `sqft_living`, we also wanted to use the `bathrooms`
 In this case, the linear regression model is
 
 $$
-\log(\text{price}) = \beta_0 + \beta_1 \text{sqft_living} +
+\log(\text{price}) = \beta_0 + \beta_1 \text{sqft\_living} +
 \beta_2 \text{bathrooms} + \epsilon
 $$
 
@@ -227,7 +227,7 @@ We could keep adding one variable at a time, along with a new $\beta_{j}$ coeffi
 Let's write this equation in vector/matrix form as
 
 $$
-\underbrace{\begin{bmatrix} \log(\text{price}_1) \\ \log(\text{price}_2) \\ \vdots \\ \log(\text{price}_N)\end{bmatrix}}_Y = \underbrace{\begin{bmatrix} 1 & \text{sqft_living}_1 & \text{bathrooms}_1 \\ 1 & \text{sqft_living}_2 & \text{bathrooms}_2 \\ \vdots & \vdots & \vdots \\ 1 & \text{sqft_living}_N & \text{bathrooms}_N \end{bmatrix}}_{X} \underbrace{\begin{bmatrix} \beta_0 \\ \beta_1 \\ \beta_2 \end{bmatrix}}_{\beta} + \epsilon
+\underbrace{\begin{bmatrix} \log(\text{price}_1) \\ \log(\text{price}_2) \\ \vdots \\ \log(\text{price}_N)\end{bmatrix}}_Y = \underbrace{\begin{bmatrix} 1 & \text{sqft\_living}_1 & \text{bathrooms}_1 \\ 1 & \text{sqft\_living}_2 & \text{bathrooms}_2 \\ \vdots & \vdots & \vdots \\ 1 & \text{sqft\_living}_N & \text{bathrooms}_N \end{bmatrix}}_{X} \underbrace{\begin{bmatrix} \beta_0 \\ \beta_1 \\ \beta_2 \end{bmatrix}}_{\beta} + \epsilon
 $$
 
 Notice that we can add as many columns to $X$ as we'd like and the linear
diff --git a/lectures/problem_sets/problem_set_3.md b/lectures/problem_sets/problem_set_3.md
index baa5fb79..dfcc6cb2 100644
--- a/lectures/problem_sets/problem_set_3.md
+++ b/lectures/problem_sets/problem_set_3.md
@@ -197,10 +197,10 @@ face value $M$, yield to maturity $i$, and periods to maturity
 $N$ is
 
 $$
-\begin{align*}
+\begin{aligned}
     P &= \left(\sum_{n=1}^N \frac{C}{(i+1)^n}\right) + \frac{M}{(1+i)^N} \\
         &= C \left(\frac{1 - (1+i)^{-N}}{i} \right) + M(1+i)^{-N}
-\end{align*}
+\end{aligned}
 $$
 
 In the code cell below, we have defined variables for `i`, `M` and `C`.
diff --git a/lectures/python_fundamentals/functions.md b/lectures/python_fundamentals/functions.md
index c0c460c0..cdf28262 100644
--- a/lectures/python_fundamentals/functions.md
+++ b/lectures/python_fundamentals/functions.md
@@ -633,10 +633,10 @@ that can be interchanged.
 That is, the following are identical.
 
 $$
-\begin{eqnarray}
+\begin{aligned}
     f(K, L) &= z\, K^{\alpha} L^{1-\alpha}\\
     f(K_2, L_2) &= z\, K_2^{\alpha} L_2^{1-\alpha}
-\end{eqnarray}
+\end{aligned}
 $$
 
 The same concept applies to Python functions, where the arguments are just
diff --git a/lectures/scientific/applied_linalg.md b/lectures/scientific/applied_linalg.md
index 44e1e2fa..45e7cecc 100644
--- a/lectures/scientific/applied_linalg.md
+++ b/lectures/scientific/applied_linalg.md
@@ -343,11 +343,11 @@ $\begin{bmatrix} 1 & 2 \\ 3 & 1 \end{bmatrix}$ then we can multiply both sides b
 to get
 
 $$
-\begin{align*}
+\begin{aligned}
 \begin{bmatrix} 1 & 2 \\ 3 & 1 \end{bmatrix}^{-1}\begin{bmatrix} 1 & 2 \\ 3 & 1 \end{bmatrix} \begin{bmatrix} x_1 \\ x_2 \end{bmatrix} &= \begin{bmatrix} 1 & 2 \\ 3 & 1 \end{bmatrix}^{-1}\begin{bmatrix} 3 \\ 4 \end{bmatrix} \\
 I \begin{bmatrix} x_1 \\ x_2 \end{bmatrix} &= \begin{bmatrix} 1 & 2 \\ 3 & 1 \end{bmatrix}^{-1} \begin{bmatrix} 3 \\ 4 \end{bmatrix} \\
  \begin{bmatrix} x_1 \\ x_2 \end{bmatrix} &= \begin{bmatrix} 1 & 2 \\ 3 & 1 \end{bmatrix}^{-1} \begin{bmatrix} 3 \\ 4 \end{bmatrix}
-\end{align*}
+ \end{aligned}
 $$
 
 Computing the inverse requires that a matrix be square and satisfy some other conditions
diff --git a/lectures/scientific/numpy_arrays.md b/lectures/scientific/numpy_arrays.md
index a01addc6..072e5878 100644
--- a/lectures/scientific/numpy_arrays.md
+++ b/lectures/scientific/numpy_arrays.md
@@ -521,10 +521,10 @@ face value $M$, yield to maturity $i$, and periods to maturity
 $N$ is
 
 $$
-\begin{align*}
+\begin{aligned}
     P &= \left(\sum_{n=1}^N \frac{C}{(i+1)^n}\right) + \frac{M}{(1+i)^N} \\
       &= C \left(\frac{1 - (1+i)^{-N}}{i} \right) + M(1+i)^{-N}
-\end{align*}
+\end{aligned}
 $$
 
 In the code cell below, we have defined variables for `i`, `M` and `C`.

From 3099b496a8627b52762216709ccb1f7a7808c846 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Tue, 19 Oct 2021 10:22:48 +1100
Subject: [PATCH 02/34] mathjax config

---
 lectures/_config.yml | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/lectures/_config.yml b/lectures/_config.yml
index 0fa6ae2a..700c3c35 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -32,20 +32,7 @@ sphinx:
         binderhub_url: https://mybinder.org
       google_analytics_id: UA-54984338-5
       persistent_sidebar: true
-    mathjax_config:
-      TeX:
-        extensions: ["autobold.js"]
-        Macros:
-          "argmax" : "arg\\,max"
-          "argmin" : "arg\\,min"
-          "col"    : "col"
-        tex2jax: 
-          inlineMath: [ ['$','$'], ['\\(','\\)'] ]
-          processEscapes: true
-        SVG:
-          scale: 0.92,
-          useGlobalCache: true
-    mathjax_path: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML
+    mathjax_path: https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-svg.js
     tojupyter_static_file_path: ["_static"]
     tojupyter_target_html: true
     tojupyter_urlpath: "https://datascience.quantecon.org/"

From b09df2bebdb77183a2fa57dc66a066f84cc9a455 Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Tue, 19 Oct 2021 10:50:38 +1100
Subject: [PATCH 03/34] Github Actions: Enable building of pdf and download
 notebooks in CI

---
 .github/workflows/ci.yml | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fcc6b992..ee633727 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,17 @@ jobs:
           python-version: 3.8
           environment-file: environment.yml
           activate-environment: lecture-datascience
+      - name: Install latex dependencies
+        run: |
+          sudo apt-get -qq update
+          sudo apt-get install -y     \
+            texlive-latex-recommended \
+            texlive-latex-extra       \
+            texlive-fonts-recommended \
+            texlive-fonts-extra       \
+            texlive-xetex             \
+            latexmk                   \
+            xindy
       - name: Display Conda Environment Versions
         shell: bash -l {0}
         run: conda list
@@ -28,6 +39,20 @@ jobs:
           branch: main
           name: build-cache
           path: _build
+      # Build Assets (Download Notebooks and PDF via LaTeX)
+      - name: Build PDF from LaTeX
+        shell: bash -l {0}
+        run: |
+          jb build lectures --builder pdflatex --path-output ./ -n --keep-going
+          mkdir -p _build/html/_pdf
+          cp -u _build/latex/*.pdf _build/html/_pdf
+      - name: Build Download Notebooks (sphinx-tojupyter)
+        shell: bash -l {0}
+        run: |
+          jb build lectures --path-output ./ --builder=custom --custom-builder=jupyter
+          mkdir -p _build/html/_notebooks
+          cp -u _build/jupyter/*.ipynb _build/html/_notebooks
+      # Build HTML (Website)
       - name: Build HTML
         shell: bash -l {0}
         run: |

From 1cf42fea1a455dc7ee9b16a61bf923cfd1e47df2 Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Tue, 19 Oct 2021 12:38:51 +1100
Subject: [PATCH 04/34] add imagemagick for sphinx.ext.imgconverter

---
 .github/workflows/ci.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ee633727..68fc342b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,8 @@ jobs:
             texlive-fonts-extra       \
             texlive-xetex             \
             latexmk                   \
-            xindy
+            xindy                     \
+            imagemagick
       - name: Display Conda Environment Versions
         shell: bash -l {0}
         run: conda list

From e3a12909fb281fa3bf51e03c7a9d2c73a25f5283 Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Tue, 19 Oct 2021 15:25:26 +1100
Subject: [PATCH 05/34] add failure artifact upload

---
 .github/workflows/ci.yml | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 68fc342b..7981eccf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,6 +47,13 @@ jobs:
           jb build lectures --builder pdflatex --path-output ./ -n --keep-going
           mkdir -p _build/html/_pdf
           cp -u _build/latex/*.pdf _build/html/_pdf
+      - name: Upload Execution Reports
+        uses: actions/upload-artifact@v2
+        if: failure()
+        with:
+          name: execution-reports
+          path: _build
+          # path: _build/html/reports
       - name: Build Download Notebooks (sphinx-tojupyter)
         shell: bash -l {0}
         run: |
@@ -58,18 +65,6 @@ jobs:
         shell: bash -l {0}
         run: |
           jb build lectures --path-output ./ -W --keep-going
-      - name: Upload Execution Reports
-        uses: actions/upload-artifact@v2
-        if: failure()
-        with:
-          name: execution-reports
-          path: _build/html/reports
-      - name: Build Download Notebooks (sphinx-tojupyter)
-        shell: bash -l {0}
-        run: |
-          jb build lectures --path-output ./ --builder=custom --custom-builder=jupyter
-          mkdir -p _build/html/_notebooks
-          rsync -r  _build/jupyter/ _build/html/_notebooks/
       - name: Copy Data Assets for Deployment
         shell: bash -l {0}
         run: |

From 3af0edc2c14f341f8eccff6f37cb261a478bbe5f Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Mon, 25 Oct 2021 13:35:36 +1100
Subject: [PATCH 06/34] TEMP: install myst-nb@master

---
 .github/workflows/ci.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7981eccf..ffcf1853 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,9 @@ jobs:
           python-version: 3.8
           environment-file: environment.yml
           activate-environment: lecture-datascience
+      - name: Install myst-nb
+        run: |
+          pip install git+https://github.com/executablebooks/MyST-NB@master
       - name: Install latex dependencies
         run: |
           sudo apt-get -qq update

From c9443296bdb704513ae9447958623d47853a8d6c Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Mon, 25 Oct 2021 14:21:34 +1100
Subject: [PATCH 07/34] enforce sphinx-tojupyter==0.2.0

---
 environment.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/environment.yml b/environment.yml
index 6b4673ec..5a16f18d 100644
--- a/environment.yml
+++ b/environment.yml
@@ -12,7 +12,7 @@ dependencies:
     - sphinx-exercise
     - joblib
     - interpolation
-    - sphinx-tojupyter
+    - sphinx-tojupyter==0.2.0
     - fiona 
     - geopandas 
     - pyLDAvis >= 3.3.0

From a286759a24ee9f964d7ce4b25fbf09fcec7905a8 Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Mon, 25 Oct 2021 14:28:31 +1100
Subject: [PATCH 08/34] upgrade to jupyter-book=0.12 and sphinx>=4

---
 environment.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/environment.yml b/environment.yml
index 5a16f18d..c1aba8cd 100644
--- a/environment.yml
+++ b/environment.yml
@@ -3,10 +3,10 @@ channels:
   - default
 dependencies:
   - python=3.8
-  - anaconda=2020.11
+  - anaconda=2021.05
   - pip
   - pip:
-    - jupyter-book>=0.11.0,<0.12.0
+    - jupyter-book>=0.12,<0.13.0
     - sphinxext-rediraffe
     - sphinx-multitoc-numbering
     - sphinx-exercise

From 51875b9f180ec930c5ec8ef736a813ffc32ffdf6 Mon Sep 17 00:00:00 2001
From: mmcky <mamckay@gmail.com>
Date: Mon, 25 Oct 2021 15:55:48 +1100
Subject: [PATCH 09/34] change name of pdf

---
 lectures/_config.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lectures/_config.yml b/lectures/_config.yml
index 700c3c35..758a0e24 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -10,6 +10,10 @@ execute:
 html:
   baseurl: https://datascience.quantecon.org/
 
+latex:
+   latex_documents:
+      targetname: datascience-book.tex
+
 sphinx:
   extra_extensions: [sphinx_multitoc_numbering, sphinx_exercise, sphinx_tojupyter]
   config:

From c9e760635349068914c1b3a68c35bd2ed4c1d0ba Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Tue, 7 Dec 2021 09:48:57 +1100
Subject: [PATCH 10/34] adding text-macros and mathjaxv2

---
 lectures/_config.yml | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/lectures/_config.yml b/lectures/_config.yml
index 758a0e24..e0f53410 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -36,7 +36,20 @@ sphinx:
         binderhub_url: https://mybinder.org
       google_analytics_id: UA-54984338-5
       persistent_sidebar: true
-    mathjax_path: https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-svg.js
+    mathjax_config:
+      TeX:
+        extensions: ["autobold.js", "Tex/text-macros.js"]
+        Macros:
+          "argmax" : "arg\\,max"
+          "argmin" : "arg\\,min"
+          "col"    : "col"
+        tex2jax: 
+          inlineMath: [ ['$','$'], ['\\(','\\)'] ]
+          processEscapes: true
+        SVG:
+          scale: 0.92,
+          useGlobalCache: true
+    mathjax_path: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML
     tojupyter_static_file_path: ["_static"]
     tojupyter_target_html: true
     tojupyter_urlpath: "https://datascience.quantecon.org/"

From f18da1a5bd16a387cc6199bc1de6409fd1622545 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Tue, 7 Dec 2021 11:29:52 +1100
Subject: [PATCH 11/34] text-macros not loading

---
 lectures/_config.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lectures/_config.yml b/lectures/_config.yml
index e0f53410..f21cabf0 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -38,7 +38,7 @@ sphinx:
       persistent_sidebar: true
     mathjax_config:
       TeX:
-        extensions: ["autobold.js", "Tex/text-macros.js"]
+        extensions: ["autobold.js", "text-macros.js"]
         Macros:
           "argmax" : "arg\\,max"
           "argmin" : "arg\\,min"

From 90925f0a1c093064686e672d506bf73f8020444f Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Tue, 7 Dec 2021 12:43:23 +1100
Subject: [PATCH 12/34] changing to mathjax 2.7.9

---
 lectures/_config.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lectures/_config.yml b/lectures/_config.yml
index f21cabf0..bc628f10 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -49,7 +49,7 @@ sphinx:
         SVG:
           scale: 0.92,
           useGlobalCache: true
-    mathjax_path: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-MML-AM_CHTML
+    mathjax_path: https://cdn.jsdelivr.net/npm/mathjax@2.7.9/MathJax.js?config=TeX-MML-AM_CHTML
     tojupyter_static_file_path: ["_static"]
     tojupyter_target_html: true
     tojupyter_urlpath: "https://datascience.quantecon.org/"

From 3c52d1f323a74c64faf0272774059afa86898f8a Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Tue, 7 Dec 2021 14:50:57 +1100
Subject: [PATCH 13/34] adding cache and mathjax key

---
 .github/workflows/ci.yml | 5 +++++
 lectures/_config.yml     | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ffcf1853..c7e0cfa4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -68,6 +68,11 @@ jobs:
         shell: bash -l {0}
         run: |
           jb build lectures --path-output ./ -W --keep-going
+      - name: Save Build as Artifact
+        uses: actions/upload-artifact@v1
+        with:
+          name: _build
+          path: _build
       - name: Copy Data Assets for Deployment
         shell: bash -l {0}
         run: |
diff --git a/lectures/_config.yml b/lectures/_config.yml
index bc628f10..4ec25fba 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -36,7 +36,7 @@ sphinx:
         binderhub_url: https://mybinder.org
       google_analytics_id: UA-54984338-5
       persistent_sidebar: true
-    mathjax_config:
+    mathjax2_config:
       TeX:
         extensions: ["autobold.js", "text-macros.js"]
         Macros:

From 854da9cd039cb3fe5e9b8255a3369794d7331a82 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Tue, 7 Dec 2021 15:41:33 +1100
Subject: [PATCH 14/34] pinning version to 0.2.1

---
 environment.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/environment.yml b/environment.yml
index 06488b65..b1daadb1 100644
--- a/environment.yml
+++ b/environment.yml
@@ -9,7 +9,7 @@ dependencies:
     - jupyter-book>=0.12,<0.13.0
     - sphinxext-rediraffe
     - sphinx-multitoc-numbering
-    - sphinx-exercise
+    - sphinx-exercise==0.2.1
     - joblib
     - interpolation
     - sphinx-tojupyter==0.2.0

From a11426a297b5c9d4b54d318adfaee616033e8c3d Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Wed, 8 Dec 2021 13:15:29 +1100
Subject: [PATCH 15/34] pinning versions to fix to sphinx3

---
 environment.yml      | 5 +++--
 lectures/_config.yml | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/environment.yml b/environment.yml
index b1daadb1..87692d06 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,13 +6,14 @@ dependencies:
   - anaconda=2021.05
   - pip
   - pip:
-    - jupyter-book>=0.12,<0.13.0
+    - sphinx==3.5.0
+    - jupyter-book>=0.12.1,<0.13.0
     - sphinxext-rediraffe
     - sphinx-multitoc-numbering
     - sphinx-exercise==0.2.1
     - joblib
     - interpolation
-    - sphinx-tojupyter==0.2.0
+    - sphinx-tojupyter==0.1.2
     - fiona 
     - geopandas 
     - pyLDAvis >= 3.3.0
diff --git a/lectures/_config.yml b/lectures/_config.yml
index 4ec25fba..b4dd9cc1 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -2,6 +2,7 @@ title: QuantEcon DataScience
 author: Chase Coleman, Spencer Lyon, and Jesse Perla
 logo: _static/datascience-logo.png
 description: This website presents a series of lectures on programming, data science, and economics.
+only_build_toc_files: true
 
 execute:
   execute_notebooks: "force"
@@ -36,7 +37,7 @@ sphinx:
         binderhub_url: https://mybinder.org
       google_analytics_id: UA-54984338-5
       persistent_sidebar: true
-    mathjax2_config:
+    mathjax_config:
       TeX:
         extensions: ["autobold.js", "text-macros.js"]
         Macros:

From 5b4f69a244017549a0cae885da82b66f59ae2c18 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Wed, 8 Dec 2021 13:17:01 +1100
Subject: [PATCH 16/34] build other files as well

---
 lectures/_config.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lectures/_config.yml b/lectures/_config.yml
index b4dd9cc1..bc628f10 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -2,7 +2,6 @@ title: QuantEcon DataScience
 author: Chase Coleman, Spencer Lyon, and Jesse Perla
 logo: _static/datascience-logo.png
 description: This website presents a series of lectures on programming, data science, and economics.
-only_build_toc_files: true
 
 execute:
   execute_notebooks: "force"

From ea7eb991f924ab6ece9b49a1a6528e02a042def7 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Wed, 15 Dec 2021 11:45:19 +1100
Subject: [PATCH 17/34] pinning to sphinx v3

---
 .github/workflows/ci.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c7e0cfa4..60e2813b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,6 +18,9 @@ jobs:
       - name: Install myst-nb
         run: |
           pip install git+https://github.com/executablebooks/MyST-NB@master
+      - name: Install sphinx
+        run: |
+          pip install sphinx==3.5.0
       - name: Install latex dependencies
         run: |
           sudo apt-get -qq update

From 95c34caf8c3e88103bd77d3851fb60bb6b5d2fc8 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Wed, 15 Dec 2021 15:17:55 +1100
Subject: [PATCH 18/34] removing cache to see fresh build

---
 .github/workflows/ci.yml | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 60e2813b..1dcee0b8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,13 +39,6 @@ jobs:
       - name: Display Pip Versions
         shell: bash -l {0}
         run: pip list
-      - name: Download "build" folder (cache)
-        uses: dawidd6/action-download-artifact@v2
-        with:
-          workflow: cache.yml
-          branch: main
-          name: build-cache
-          path: _build
       # Build Assets (Download Notebooks and PDF via LaTeX)
       - name: Build PDF from LaTeX
         shell: bash -l {0}

From 3700fe2dd4ec34941047e7ee57b0ce41caa55e61 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 10:54:16 +1100
Subject: [PATCH 19/34] testing with plotly file only

---
 lectures/_config.yml |  1 +
 lectures/_toc.yml    | 44 --------------------------------------------
 2 files changed, 1 insertion(+), 44 deletions(-)

diff --git a/lectures/_config.yml b/lectures/_config.yml
index bc628f10..b4dd9cc1 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -2,6 +2,7 @@ title: QuantEcon DataScience
 author: Chase Coleman, Spencer Lyon, and Jesse Perla
 logo: _static/datascience-logo.png
 description: This website presents a series of lectures on programming, data science, and economics.
+only_build_toc_files: true
 
 execute:
   execute_notebooks: "force"
diff --git a/lectures/_toc.yml b/lectures/_toc.yml
index 653bb21a..04203be9 100644
--- a/lectures/_toc.yml
+++ b/lectures/_toc.yml
@@ -1,50 +1,6 @@
 format: jb-book
 root: index
 parts:
-- caption: Introduction
-  chapters:
-    - file: introduction/index
-    - file: introduction/overview
-    - file: introduction/getting_started
-    - file: introduction/cloud_setup
-    - file: introduction/local_install
-    - file: introduction/troubleshooting
-- caption: Python Fundamentals
-  chapters:
-    - file: python_fundamentals/index
-    - file: python_fundamentals/basics
-    - file: python_fundamentals/collections
-    - file: python_fundamentals/control_flow
-    - file: python_fundamentals/functions
-- caption: Scientific Computing
-  chapters:
-    - file: scientific/index
-    - file: scientific/numpy_arrays
-    - file: scientific/plotting
-    - file: scientific/applied_linalg
-    - file: scientific/randomness
-    - file: scientific/optimization
-- caption: Pandas
-  chapters:
-    - file: pandas/index
-    - file: pandas/intro
-    - file: pandas/basics
-    - file: pandas/the_index
-    - file: pandas/storage_formats
-    - file: pandas/data_clean
-    - file: pandas/reshape
-    - file: pandas/merge
-    - file: pandas/groupby
-    - file: pandas/timeseries
-    - file: pandas/matplotlib
 - caption: Applications
   chapters:
-    - file: applications/index
-    - file: applications/visualization_rules
     - file: applications/regression
-    - file: applications/recidivism
-    - file: applications/maps
-    - file: applications/classification
-    - file: applications/working_with_text
-    - file: applications/ml_in_economics
-    - file: applications/heterogeneity

From 2a1a92c569faa7db839a26cd08cf352603124d26 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 11:05:50 +1100
Subject: [PATCH 20/34] without error

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1dcee0b8..e3fc2293 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./ -W --keep-going
+          jb build lectures --path-output ./ --keep-going
       - name: Save Build as Artifact
         uses: actions/upload-artifact@v1
         with:

From 1023fca1696cea5bc945d086d09eaff07cf0f8a2 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 11:39:29 +1100
Subject: [PATCH 21/34] checking with old ci

---
 .github/workflows/ci.yml | 49 ++++++++++------------------------------
 1 file changed, 12 insertions(+), 37 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e3fc2293..b5ed62aa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,60 +15,35 @@ jobs:
           python-version: 3.8
           environment-file: environment.yml
           activate-environment: lecture-datascience
-      - name: Install myst-nb
-        run: |
-          pip install git+https://github.com/executablebooks/MyST-NB@master
-      - name: Install sphinx
-        run: |
-          pip install sphinx==3.5.0
-      - name: Install latex dependencies
-        run: |
-          sudo apt-get -qq update
-          sudo apt-get install -y     \
-            texlive-latex-recommended \
-            texlive-latex-extra       \
-            texlive-fonts-recommended \
-            texlive-fonts-extra       \
-            texlive-xetex             \
-            latexmk                   \
-            xindy                     \
-            imagemagick
       - name: Display Conda Environment Versions
         shell: bash -l {0}
         run: conda list
       - name: Display Pip Versions
         shell: bash -l {0}
         run: pip list
-      # Build Assets (Download Notebooks and PDF via LaTeX)
-      - name: Build PDF from LaTeX
+      - name: Download "build" folder (cache)
+        uses: dawidd6/action-download-artifact@v2
+        with:
+          workflow: cache.yml
+          branch: main
+          name: build-cache
+          path: _build
+      - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --builder pdflatex --path-output ./ -n --keep-going
-          mkdir -p _build/html/_pdf
-          cp -u _build/latex/*.pdf _build/html/_pdf
+          jb build lectures --path-output ./ -W --keep-going
       - name: Upload Execution Reports
         uses: actions/upload-artifact@v2
         if: failure()
         with:
           name: execution-reports
-          path: _build
-          # path: _build/html/reports
+          path: _build/html/reports
       - name: Build Download Notebooks (sphinx-tojupyter)
         shell: bash -l {0}
         run: |
           jb build lectures --path-output ./ --builder=custom --custom-builder=jupyter
           mkdir -p _build/html/_notebooks
-          cp -u _build/jupyter/*.ipynb _build/html/_notebooks
-      # Build HTML (Website)
-      - name: Build HTML
-        shell: bash -l {0}
-        run: |
-          jb build lectures --path-output ./ --keep-going
-      - name: Save Build as Artifact
-        uses: actions/upload-artifact@v1
-        with:
-          name: _build
-          path: _build
+          rsync -r  _build/jupyter/ _build/html/_notebooks/
       - name: Copy Data Assets for Deployment
         shell: bash -l {0}
         run: |
@@ -83,4 +58,4 @@ jobs:
           deploy-message: "Preview Deploy from GitHub Actions"
         env:
           NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
-          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
+          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
\ No newline at end of file

From 2e7b3120aefc6475862e73271dc9ab74ccb743f4 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 11:45:20 +1100
Subject: [PATCH 22/34] error off

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b5ed62aa..9d557fba 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,7 +31,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./ -W --keep-going
+          jb build lectures --path-output ./ --keep-going
       - name: Upload Execution Reports
         uses: actions/upload-artifact@v2
         if: failure()

From e59096ec3f7adff923cd7524d203b6a1fa0178b0 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 11:57:19 +1100
Subject: [PATCH 23/34] putting myst-nb latest install in ci

---
 .github/workflows/ci.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d557fba..32a6fa94 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,12 @@ jobs:
           python-version: 3.8
           environment-file: environment.yml
           activate-environment: lecture-datascience
+      - name: Install myst-nb
+        run: |
+          pip install git+https://github.com/executablebooks/MyST-NB@master
+      - name: Install sphinx
+        run: |
+          pip install sphinx==3.5.0
       - name: Display Conda Environment Versions
         shell: bash -l {0}
         run: conda list

From 06219e7ddd612db38b82276f303a57d03adbf4ef Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 12:07:47 +1100
Subject: [PATCH 24/34] adding latex dependencies

---
 .github/workflows/ci.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 32a6fa94..0b4ff814 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,6 +21,18 @@ jobs:
       - name: Install sphinx
         run: |
           pip install sphinx==3.5.0
+      - name: Install latex dependencies
+        run: |
+          sudo apt-get -qq update
+          sudo apt-get install -y     \
+            texlive-latex-recommended \
+            texlive-latex-extra       \
+            texlive-fonts-recommended \
+            texlive-fonts-extra       \
+            texlive-xetex             \
+            latexmk                   \
+            xindy                     \
+            imagemagick
       - name: Display Conda Environment Versions
         shell: bash -l {0}
         run: conda list

From fa94e4783651e523fb58658a1a64f4c10ffa3fd8 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 12:22:00 +1100
Subject: [PATCH 25/34] added latex build

---
 .github/workflows/ci.yml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0b4ff814..70049607 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,6 +39,13 @@ jobs:
       - name: Display Pip Versions
         shell: bash -l {0}
         run: pip list
+      # Build Assets (Download Notebooks and PDF via LaTeX)
+      - name: Build PDF from LaTeX
+        shell: bash -l {0}
+        run: |
+          jb build lectures --builder pdflatex --path-output ./ -n --keep-going
+          mkdir -p _build/html/_pdf
+          cp -u _build/latex/*.pdf _build/html/_pdf
       - name: Download "build" folder (cache)
         uses: dawidd6/action-download-artifact@v2
         with:

From 138d170f7c3e78a2e451acf7ebad23ca528980f7 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 12:53:59 +1100
Subject: [PATCH 26/34] downloading, uploading artifacts

---
 .github/workflows/ci.yml | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 70049607..dc29f53b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,13 +39,6 @@ jobs:
       - name: Display Pip Versions
         shell: bash -l {0}
         run: pip list
-      # Build Assets (Download Notebooks and PDF via LaTeX)
-      - name: Build PDF from LaTeX
-        shell: bash -l {0}
-        run: |
-          jb build lectures --builder pdflatex --path-output ./ -n --keep-going
-          mkdir -p _build/html/_pdf
-          cp -u _build/latex/*.pdf _build/html/_pdf
       - name: Download "build" folder (cache)
         uses: dawidd6/action-download-artifact@v2
         with:
@@ -53,6 +46,13 @@ jobs:
           branch: main
           name: build-cache
           path: _build
+      # Build Assets (Download Notebooks and PDF via LaTeX)
+      - name: Build PDF from LaTeX
+        shell: bash -l {0}
+        run: |
+          jb build lectures --builder pdflatex --path-output ./ -n --keep-going
+          mkdir -p _build/html/_pdf
+          cp -u _build/latex/*.pdf _build/html/_pdf
       - name: Build HTML
         shell: bash -l {0}
         run: |
@@ -62,13 +62,18 @@ jobs:
         if: failure()
         with:
           name: execution-reports
-          path: _build/html/reports
+          path: _build
       - name: Build Download Notebooks (sphinx-tojupyter)
         shell: bash -l {0}
         run: |
           jb build lectures --path-output ./ --builder=custom --custom-builder=jupyter
           mkdir -p _build/html/_notebooks
           rsync -r  _build/jupyter/ _build/html/_notebooks/
+      - name: Save Build as Artifact
+        uses: actions/upload-artifact@v1
+        with:
+          name: _build
+          path: _build
       - name: Copy Data Assets for Deployment
         shell: bash -l {0}
         run: |

From 0c702ddead183ee24a3ac490dfa38837c0b61d47 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 16:20:18 +1100
Subject: [PATCH 27/34] build folder from cache

---
 .github/workflows/ci.yml | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dc29f53b..37fb3785 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,13 +39,6 @@ jobs:
       - name: Display Pip Versions
         shell: bash -l {0}
         run: pip list
-      - name: Download "build" folder (cache)
-        uses: dawidd6/action-download-artifact@v2
-        with:
-          workflow: cache.yml
-          branch: main
-          name: build-cache
-          path: _build
       # Build Assets (Download Notebooks and PDF via LaTeX)
       - name: Build PDF from LaTeX
         shell: bash -l {0}

From 1f4f0c8134be12ce7c3e655b3c97a1a5fffaf16a Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 16:33:16 +1100
Subject: [PATCH 28/34] upload artifacts

---
 .github/workflows/ci.yml | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 37fb3785..22a7cb52 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,11 +62,6 @@ jobs:
           jb build lectures --path-output ./ --builder=custom --custom-builder=jupyter
           mkdir -p _build/html/_notebooks
           rsync -r  _build/jupyter/ _build/html/_notebooks/
-      - name: Save Build as Artifact
-        uses: actions/upload-artifact@v1
-        with:
-          name: _build
-          path: _build
       - name: Copy Data Assets for Deployment
         shell: bash -l {0}
         run: |

From e35a921640928d64b39c51029ff066b81d1d9765 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 16:42:00 +1100
Subject: [PATCH 29/34] reports path

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 22a7cb52..2ed34089 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -55,7 +55,7 @@ jobs:
         if: failure()
         with:
           name: execution-reports
-          path: _build
+          path: _build/html/reports
       - name: Build Download Notebooks (sphinx-tojupyter)
         shell: bash -l {0}
         run: |

From aa37ac01579e1d2d78f220be667bcd2443f15d8a Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 23:23:46 +1100
Subject: [PATCH 30/34] adding cache build folder

---
 .github/workflows/ci.yml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2ed34089..70049607 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,6 +46,13 @@ jobs:
           jb build lectures --builder pdflatex --path-output ./ -n --keep-going
           mkdir -p _build/html/_pdf
           cp -u _build/latex/*.pdf _build/html/_pdf
+      - name: Download "build" folder (cache)
+        uses: dawidd6/action-download-artifact@v2
+        with:
+          workflow: cache.yml
+          branch: main
+          name: build-cache
+          path: _build
       - name: Build HTML
         shell: bash -l {0}
         run: |

From 8571bb873a88f2ca3509a951d1cd19a8fd903c2d Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Thu, 16 Dec 2021 23:32:51 +1100
Subject: [PATCH 31/34] reverting changes to toc and config

---
 lectures/_config.yml |  1 -
 lectures/_toc.yml    | 44 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/lectures/_config.yml b/lectures/_config.yml
index b4dd9cc1..bc628f10 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -2,7 +2,6 @@ title: QuantEcon DataScience
 author: Chase Coleman, Spencer Lyon, and Jesse Perla
 logo: _static/datascience-logo.png
 description: This website presents a series of lectures on programming, data science, and economics.
-only_build_toc_files: true
 
 execute:
   execute_notebooks: "force"
diff --git a/lectures/_toc.yml b/lectures/_toc.yml
index 04203be9..653bb21a 100644
--- a/lectures/_toc.yml
+++ b/lectures/_toc.yml
@@ -1,6 +1,50 @@
 format: jb-book
 root: index
 parts:
+- caption: Introduction
+  chapters:
+    - file: introduction/index
+    - file: introduction/overview
+    - file: introduction/getting_started
+    - file: introduction/cloud_setup
+    - file: introduction/local_install
+    - file: introduction/troubleshooting
+- caption: Python Fundamentals
+  chapters:
+    - file: python_fundamentals/index
+    - file: python_fundamentals/basics
+    - file: python_fundamentals/collections
+    - file: python_fundamentals/control_flow
+    - file: python_fundamentals/functions
+- caption: Scientific Computing
+  chapters:
+    - file: scientific/index
+    - file: scientific/numpy_arrays
+    - file: scientific/plotting
+    - file: scientific/applied_linalg
+    - file: scientific/randomness
+    - file: scientific/optimization
+- caption: Pandas
+  chapters:
+    - file: pandas/index
+    - file: pandas/intro
+    - file: pandas/basics
+    - file: pandas/the_index
+    - file: pandas/storage_formats
+    - file: pandas/data_clean
+    - file: pandas/reshape
+    - file: pandas/merge
+    - file: pandas/groupby
+    - file: pandas/timeseries
+    - file: pandas/matplotlib
 - caption: Applications
   chapters:
+    - file: applications/index
+    - file: applications/visualization_rules
     - file: applications/regression
+    - file: applications/recidivism
+    - file: applications/maps
+    - file: applications/classification
+    - file: applications/working_with_text
+    - file: applications/ml_in_economics
+    - file: applications/heterogeneity

From ea5026879d5eecf65a54e231eaa207d625f45663 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Fri, 17 Dec 2021 10:26:04 +1100
Subject: [PATCH 32/34] uploading build as artifact

---
 .github/workflows/ci.yml |  7 ++++++-
 lectures/_config.yml     |  1 +
 lectures/_toc.yml        | 44 ----------------------------------------
 3 files changed, 7 insertions(+), 45 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 70049607..74707af6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,7 +56,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./ --keep-going
+          jb build lectures --path-output ./ -W --keep-going
       - name: Upload Execution Reports
         uses: actions/upload-artifact@v2
         if: failure()
@@ -74,6 +74,11 @@ jobs:
         run: |
           mkdir -p _build/html/assets/data
           cp -a lectures/_data/. _build/html/assets/data/
+      - name: Save Build as Artifact
+        uses: actions/upload-artifact@v1
+        with:
+          name: _build
+          path: _build
       - name: Preview Deploy to Netlify
         uses: nwtgck/actions-netlify@v1.1
         with:
diff --git a/lectures/_config.yml b/lectures/_config.yml
index bc628f10..b4dd9cc1 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -2,6 +2,7 @@ title: QuantEcon DataScience
 author: Chase Coleman, Spencer Lyon, and Jesse Perla
 logo: _static/datascience-logo.png
 description: This website presents a series of lectures on programming, data science, and economics.
+only_build_toc_files: true
 
 execute:
   execute_notebooks: "force"
diff --git a/lectures/_toc.yml b/lectures/_toc.yml
index 653bb21a..04203be9 100644
--- a/lectures/_toc.yml
+++ b/lectures/_toc.yml
@@ -1,50 +1,6 @@
 format: jb-book
 root: index
 parts:
-- caption: Introduction
-  chapters:
-    - file: introduction/index
-    - file: introduction/overview
-    - file: introduction/getting_started
-    - file: introduction/cloud_setup
-    - file: introduction/local_install
-    - file: introduction/troubleshooting
-- caption: Python Fundamentals
-  chapters:
-    - file: python_fundamentals/index
-    - file: python_fundamentals/basics
-    - file: python_fundamentals/collections
-    - file: python_fundamentals/control_flow
-    - file: python_fundamentals/functions
-- caption: Scientific Computing
-  chapters:
-    - file: scientific/index
-    - file: scientific/numpy_arrays
-    - file: scientific/plotting
-    - file: scientific/applied_linalg
-    - file: scientific/randomness
-    - file: scientific/optimization
-- caption: Pandas
-  chapters:
-    - file: pandas/index
-    - file: pandas/intro
-    - file: pandas/basics
-    - file: pandas/the_index
-    - file: pandas/storage_formats
-    - file: pandas/data_clean
-    - file: pandas/reshape
-    - file: pandas/merge
-    - file: pandas/groupby
-    - file: pandas/timeseries
-    - file: pandas/matplotlib
 - caption: Applications
   chapters:
-    - file: applications/index
-    - file: applications/visualization_rules
     - file: applications/regression
-    - file: applications/recidivism
-    - file: applications/maps
-    - file: applications/classification
-    - file: applications/working_with_text
-    - file: applications/ml_in_economics
-    - file: applications/heterogeneity

From 4c1c2cde5baa42692462e4eea20df96820666380 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Fri, 17 Dec 2021 10:34:51 +1100
Subject: [PATCH 33/34] -W

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 74707af6..83c6f0ae 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,7 +56,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./ -W --keep-going
+          jb build lectures --path-output ./ --keep-going
       - name: Upload Execution Reports
         uses: actions/upload-artifact@v2
         if: failure()

From 78167d503141d7e19aa0bfd1ba4c297a525a59b1 Mon Sep 17 00:00:00 2001
From: AakashGC <aakashgfude@gmail.com>
Date: Fri, 17 Dec 2021 10:54:07 +1100
Subject: [PATCH 34/34] trying out the whole build

---
 .github/workflows/ci.yml |  2 +-
 lectures/_config.yml     |  1 -
 lectures/_toc.yml        | 44 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 45 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 83c6f0ae..74707af6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,7 +56,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./ --keep-going
+          jb build lectures --path-output ./ -W --keep-going
       - name: Upload Execution Reports
         uses: actions/upload-artifact@v2
         if: failure()
diff --git a/lectures/_config.yml b/lectures/_config.yml
index b4dd9cc1..bc628f10 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -2,7 +2,6 @@ title: QuantEcon DataScience
 author: Chase Coleman, Spencer Lyon, and Jesse Perla
 logo: _static/datascience-logo.png
 description: This website presents a series of lectures on programming, data science, and economics.
-only_build_toc_files: true
 
 execute:
   execute_notebooks: "force"
diff --git a/lectures/_toc.yml b/lectures/_toc.yml
index 04203be9..653bb21a 100644
--- a/lectures/_toc.yml
+++ b/lectures/_toc.yml
@@ -1,6 +1,50 @@
 format: jb-book
 root: index
 parts:
+- caption: Introduction
+  chapters:
+    - file: introduction/index
+    - file: introduction/overview
+    - file: introduction/getting_started
+    - file: introduction/cloud_setup
+    - file: introduction/local_install
+    - file: introduction/troubleshooting
+- caption: Python Fundamentals
+  chapters:
+    - file: python_fundamentals/index
+    - file: python_fundamentals/basics
+    - file: python_fundamentals/collections
+    - file: python_fundamentals/control_flow
+    - file: python_fundamentals/functions
+- caption: Scientific Computing
+  chapters:
+    - file: scientific/index
+    - file: scientific/numpy_arrays
+    - file: scientific/plotting
+    - file: scientific/applied_linalg
+    - file: scientific/randomness
+    - file: scientific/optimization
+- caption: Pandas
+  chapters:
+    - file: pandas/index
+    - file: pandas/intro
+    - file: pandas/basics
+    - file: pandas/the_index
+    - file: pandas/storage_formats
+    - file: pandas/data_clean
+    - file: pandas/reshape
+    - file: pandas/merge
+    - file: pandas/groupby
+    - file: pandas/timeseries
+    - file: pandas/matplotlib
 - caption: Applications
   chapters:
+    - file: applications/index
+    - file: applications/visualization_rules
     - file: applications/regression
+    - file: applications/recidivism
+    - file: applications/maps
+    - file: applications/classification
+    - file: applications/working_with_text
+    - file: applications/ml_in_economics
+    - file: applications/heterogeneity