diff --git a/.obsidian/plugins/obsidian-git/data.json b/.obsidian/plugins/obsidian-git/data.json
index 7b1247f..4bc189e 100644
--- a/.obsidian/plugins/obsidian-git/data.json
+++ b/.obsidian/plugins/obsidian-git/data.json
@@ -2,7 +2,7 @@
   "commitMessage": "vault backup: {{date}}",
   "autoCommitMessage": "vault backup: {{date}}",
   "commitDateFormat": "YYYY-MM-DD HH:mm:ss",
-  "autoSaveInterval": 1,
+  "autoSaveInterval": 5,
   "autoPushInterval": 0,
   "autoPullInterval": 5,
   "autoPullOnBoot": false,
diff --git a/education/math/Exponents.md b/education/math/Exponents.md
new file mode 100644
index 0000000..3057957
--- /dev/null
+++ b/education/math/Exponents.md
@@ -0,0 +1,2 @@
+A negative exponent is the equivalent of `1/x`, EG
+$$ x^{-2} = \frac{1}{x^2} $$