bryanwweber · bryanwweber · Jan 20, 2025 · Jan 26, 2025 · Jan 26, 2025 · Jan 27, 2025
diff --git a/.mise.toml b/.mise.toml
@@ -5,7 +5,7 @@ cargo-binstall          = "latest"
 julia                   = "latest"
 node                    = "22"
 "npm:markdownlint-cli2" = "latest"
-python                  = "3.12"
+python                  = "3.13"
 uv                      = "latest"
 watchexec               = "latest"
 

diff --git a/.vscode/settings.json b/.vscode/settings.json
@@ -7,6 +7,7 @@
     "Kármán",
     "Laguerre",
     "periapsis",
+    "perifocal",
     "Prussing",
     "semimajor",
     "Semiminor",
@@ -35,5 +36,6 @@
       //   ]
     }
   ],
-  "editor.formatOnSave": true
+  "editor.formatOnSave": true,
+  "python.analysis.typeCheckingMode": "basic"
 }
diff --git a/_config.yml b/_config.yml
diff --git a/_toc.yml b/_toc.yml
diff --git a/bibliography.md b/bibliography.md
diff --git a/chapter-4/7-effects-of-the-earths-oblateness.md b/chapter-4/7-effects-of-the-earths-oblateness.md
@@ -90,7 +90,7 @@ $$\dot{\Omega} = 0.9856°/\mathrm{day} = 1.991\times 10^{-7} rad/s$$
 
 Notice that the node line must move eastward, so the orbital inclination must be greater than 90°.
 
-Returning to Eq. {eq}`regression-of-nodes`, we can see that if $\dot{\Omega}$ is specified, we have three free parameters: $a$, $e$, and $i$. This allows some choice of perigee and period, and inclination can then be solved for.
+Returning to @regression-of-nodes, we can see that if $\dot{\Omega}$ is specified, we have three free parameters: $a$, $e$, and $i$. This allows some choice of perigee and period, and inclination can then be solved for.
 
 ### High-Latitude Observation