diff --git a/.obsidian/plugins/obsidian-git/data.json b/.obsidian/plugins/obsidian-git/data.json
index 4bc189e..7b1247f 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": 5,
+  "autoSaveInterval": 1,
   "autoPushInterval": 0,
   "autoPullInterval": 5,
   "autoPullOnBoot": false,
diff --git a/education/math/Matrices.md b/education/math/Matrices.md
index 7a8e54a..f6a45b1 100644
--- a/education/math/Matrices.md
+++ b/education/math/Matrices.md
@@ -13,10 +13,11 @@ $$
 \end{bmatrix}
 $$
 ## Multiplying matrices
-To multiply two matrices, the number of columns for the first option must match the number of columns in the second.
+To multiply two matrices, the *number of columns* for the first matrix must match the number of columns in the second.
 
 To get answers, go through each entry in the second matrix, entry by entry, and multiply by every item in the matching row of the first one, then add all of those together.
 
 https://www.youtube.com/watch?v=XkY2DOUCWMU
 
 ## Adding matrices
+To add two matrices together, they must be the same dimensionally (same number of rows, same number of columns).
\ No newline at end of file