Merge branch 'main' into fix-lecture-subtitle-capitalization

Author: mmcky

.github/workflows/cache.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with:

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with:

.github/workflows/execution.yml

@@ -14,7 +14,7 @@ jobs:
         python-version: ["3.12"]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - uses: conda-incubator/setup-miniconda@v3
         with:
           auto-update-conda: true
@@ -56,7 +56,7 @@ jobs:
         python-version: ["3.12"]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - uses: conda-incubator/setup-miniconda@v3
         with:
           auto-update-conda: true

.github/workflows/linkcheck.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       # Checkout the live site (html)
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: gh-pages
       - name: Link Checker

.github/workflows/publish.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup Anaconda
         uses: conda-incubator/setup-miniconda@v3
         with:

lectures/_static/lecture_specific/orth_proj/orth_proj_thm2.pdf

@@ -19,12 +19,13 @@
     \draw[important line, thick]  (Z1) -- (O) node[right] {};
     \draw[important line, thick]  (Py) -- (Z2) node[right] {$S$};
     \draw[important line, blue,->]  (O) -- (y) node[right] {$y$};
+    \draw[important line, blue,->]  (O) -- (Py') node[anchor = north west, text width=5em] {$P y'$};
     \draw[dotted line] (0.54,0.27) -- (0.51,0.33);
     \draw[dotted line] (0.57,0.36) -- (0.51,0.33);
     \draw[dotted line] (-0.22,-0.11) -- (-0.25,-0.05);
     \draw[dotted line] (-0.31,-0.08) -- (-0.25,-0.05);
     \draw[dashed line, black] (y) -- (Py);
-    \draw[dashed line, black] (y') -- (Py') node[anchor = north west, text width=5em] {$P y'$};
+    \draw[dashed line, black] (y') -- (Py');
 \end{tikzpicture}
 
 \end{document}